English words: optogalvanic to orangey

300 English words, part 32 of 67 of the words starting with O, A to Z. 23 have a page of their own.

English words optogalvanic to orangey

optogalvanic adjective: Describing any effect of light upon the electrical conductivity of a material
optogenetic adjective /ˌɑptoʊd͡ʒɪˈnɛtɪk/: generated by light
optogenetical adjective: Alternative form of optogenetic.
optogenetically adverb: In an optogenetic manner
optogenetics noun: A science that combines optics and genetics, aiming at controlling cellular processes with light. The cells are made responsive to light using genetics and...
optogram noun: An image of external objects fixed on the retina by the photochemical action of light on rhodopsin.
optography noun: The production of an optogram on the retina by the photochemical action of light on rhodopsin, which is seen as the fixation of an image in the eye.
optoinject verb: To optically inject
optoinjectant noun: A material that is optoinjected
optoinjection noun: optical injection, photoinjection (of nucleic acids)
optoisolated adjective: isolated by means of an optoisolator
optoisolation noun: isolation of part of an electrical circuit by means of an optoisolator
optoisolator noun /ˌɑptoʊˈaɪsəleɪtɚ/: A device that transmits a signal optically between two isolated electronic circuits
optokinesis noun: The movement of the eye in response to an external stimulus
optokinetic adjective: Of or pertaining to movement of the eyes
optokinetically adverb: In an optokinetic manner
optological adjective: Of or relating to optology.
optologist noun: One who studies optology.
optology noun: The study of sight.
optomagnetic adjective: optical and magnetic; related to optomagnetism
optomagnonic adjective: Relating to optical magnons or to optomagnonics
optomagnonics noun: The study of optical magnons
optomechanical adjective: Of or pertaining to optomechanics
optomechanically adverb: By means of, or in terms of, optomechanics.
optomechanics noun: The design and manufacture of precision mechanical components of optical devices
optomechatronic adjective: Of or relating to optomechatronics.
optomechatronics noun: The integration of optical components and technology into mechatronic systems.
optometer noun /ɑpˈtɑmətəɹ/: An instrument for measuring the focus of the lens of the eye.
optometric adjective: Of or pertaining to optometry
optometrical adjective: Of or pertaining to optometry.
optometrically adverb: In an optometric way.
optometrics noun: optometry
optometrist noun /ɑpˈtɑmətɹɪst/: A person trained and skilled in examining and testing the eyes for defects, in order to prescribe corrective lenses or treatment.
optometry noun /ɒpˈtɒmɪtri/: The art and science of vision and eye care.
optomotor adjective: Describing movement of the eye, head or body (especially of insects) that steadies the field of vision
optophobia noun: The fear of opening one's eyes.
optophone noun /ˈɑptəˌfoʊn/: A device that transforms light into sound.
optophysiologic adjective: Alternative form of optophysiological.
optophysiological adjective: Relating to optophysiology
optophysiology noun: The physiology of the action of light
optoplasmonic adjective: optical and plasmonic
optoporation noun: Synonym of photoporation.
optosensing noun: optical sensing / monitoring, typically via optical fibre technology
optospectroscopic adjective: Relating to optical spectroscopy
optospintronic adjective: Related to optospintronics
optospintronics noun: The (study of the) interaction of light with spin polarization (spintronics)
optostimulation noun: optical stimulation
optotag verb: To employ optotagging as part of optogenetics
optotagged adjective, verb: tagged by optotagging
optotagging noun: tagging as part of an optogenetics experiment
optothermal adjective: Relating to light and heat
optotype noun: A standardized symbol for testing vision.
optotypic adjective: Relating to an optotype
optrode noun /ˈɒp.tɹəʊd/: Alternative spelling of optode.
optronic adjective /ɒpˈtɹɒn.ɪk/: optoelectronic
optronics noun: optoelectronics
OPU noun: Initialism of optical pickup unit.
Opua proper noun: A coastal settlement in the Bay of Islands, Northland, New Zealand.
opulence noun /ˈɒp.jʊl.əns/: Wealth.
opulent adjective /ˈɒpjʊlənt/: Luxuriant, and ostentatiously magnificent.
opulently adverb: In an opulent manner.
opuntia noun /əˈpʌntiə/: Opuntia, a genus of cactus that includes such cacti as the prickly pear and xoconostle.
opuntiaceous adjective: Belonging to the family Opuntiaceae (now mostly subfamily Opuntioideae in Cactaceae).
opuntioid noun: Any cactus of the subfamily Opuntioideae
opus noun /ˈəʊpəs/: A work of music or set of works with a specified rank in an ordering of a composer's complete published works.
opus anglicanum noun: Fine medieval English needlework, often using gold and silver threads on a rich velvet or linen ground.
opus caementicium noun: Synonym of Roman concrete.
opus incertum noun: An Ancient Roman construction technique, using irregular-shaped and randomly placed uncut stones or fist-sized tuff blocks inserted in a core of opus...
opus latericium noun: An Ancient Roman construction technique in which coursed brickwork is used to face a core of opus caementicium.
opus magnum noun: Alternative form of magnum opus.
opus operantis noun: The spiritual effect in the performance of a religious rite that is ascribed chiefly or exclusively to the disposition of the recipient.
opus operatum noun: The spiritual effect in the performance of a religious rite which accrues from the virtue inherent in it, or by grace imparted to it, irrespective of the...
opus quadratum noun: An ancient Roman construction technique in which squared blocks of stone of the same height were set in parallel courses, most often without the use of mortar.
opus reticulatum noun: A facing used for concrete walls in Ancient Roman architecture, with small pyramidal tuff embedded in a concrete core.
opus sectile noun: A form of pietra dura, popular in the ancient and medieval western world, in which materials are cut and inlaid into walls and floors to create images or...
opus spicatum noun: Herringbone masonry.
opus vermiculatum noun: A method of laying mosaic tesserae to emphasize an outline around a subject.
opuscular adjective: Of or relating to an opusculum.
opuscule noun /əˈpʌs.kjuːl/: A small or petty work.
opusculum noun /oʊˈpʌs.kjuː.ləm/: An opuscule; a short work.
OPV noun: Initialism of optionally piloted vehicle.
OQ noun: Initialism of obligatory quote.
OQDS noun: Initialism of olive quick decline syndrome.
OQI noun: Initialism of optics-based quantum imaging.
OQL noun: Initialism of observed quality level.
OQR noun: Initialism of Officer Qualification Record.
oquassa noun: A type of blueback trout, Salvelinus oquassa, specifically those found in the Rangeley Lakes Region of Maine. Now considered to be the same species as the...
Oquawka proper noun: A village, the county seat of Henderson County, Illinois, United States.
Oquendo proper noun: A surname.
Oquirrh proper noun /ˈoʊkəɹ/: A census-designated place in Salt Lake County, Utah.
or adjective, adverb, conjunction, noun, preposition, suffix /ə(ɹ)/: Connects at least two alternative words, phrases, clauses, sentences, etc., each of which could make a passage true.
or/and conjunction: Alternative form of and/or.
or anything phrase: Synonym of or something; mostly used with negative constructions.
or bust phrase /ɔː ˈbʌst/: Used to indicate one's intention to do everything possible to achieve a goal, with failure being the only alternative.
OR/CR noun: Initialism of official receipt/certificate of registration.
or else conjunction, phrase: Otherwise or as an alternative.
OR gate noun: A logic gate performing a Boolean logic OR operation.
or hor interjection: Alternative spelling of orh hor.
or it didn't happen phrase: Unless one can provide the proof that one is requesting, that person has no credibility in the matter.
or-molu noun: Dated form of ormolu.
or-moulu noun: Dated form of ormolu.
or not particle, phrase [ɔ˨ nɔt˨]: Final interrogative particle, forming a yes/no question from a declarative statement.
or should I say phrase: Said by someone after a statement, meaning to precede a pun or another kind of clever rephrasing
or so phrase: Roughly, approximately.
or so on phrase: An expression used to indicate the continuation of a list, series, or pattern when the remaining items are obvious, unimportant, or too numerous to specify.
or something phrase: Or something like that. Used to indicate the possibility that the preceding word or phrase is vague or not exactly correct in its applicability.
or what phrase: Or something else; allows for the existence of an unexpressed alternative to what was said.
or words to that effect phrase: used to indicate a paraphrase or the chance of an error in the details of reported speech.
ora noun: A unit of money among the Anglo-Saxons.
ora serrata noun: The serrated junction between the retina and the ciliary body, marking the transition from the simple non-photosensitive area of the ciliary body to the...
Orabassu titi noun: Synonym of red-bellied titi.
oracally adverb: Synonym of oracularly.
orach noun /ˈɔɹɪt͡ʃ/: especially Atriplex hortensis
orache noun: Alternative spelling of orach.
orache moth noun: Trachea atriplicis, a species of moth.
oracle noun, verb /ˈɔɹəkəl/: A shrine dedicated to some prophetic deity.
oracle bone noun: A piece of turtle shell or bone used for divination during the late Shang dynasty of China.
oracle bone script noun: The set of incised ancient Chinese characters found on oracle bones used in divination during Bronze Age China.
oracle card noun: A type of card used for spiritual insight, personal exploration, and ritual.
oracle machine noun: In computability theory, a form of theoretical Turing machine, able to solve even undecidable decision problems in a single operation.
oraclelike adjective: Like an oracle; prophetic.
oracular adjective /ɒɹˈæk.juː.lə/: Of or relating to an oracle.
oracularity noun: Oracular speech or behaviour.
oracularly adverb: In an oracular manner.
oracularness noun: oracularity
oraculous adjective: Oracular.
oraculously adverb: In an oraculous manner; like an oracle.
oraculousness noun: The state or condition of being oraculous.
oracy noun: The ability to speak, and to understand spoken language
orad adjective, adverb: Located towards the oral opening (the mouth).
Oradea proper noun: The capital and largest city of Bihor County, Romania.
Oradell proper noun: A borough in Bergen County, New Jersey, United States.
oragious adjective: stormy
Oraibi proper noun: A Hopi village in Arizona, United States.
Oraibian adjective: Of, relating, or pertaining to Oraibi, Arizona
Orakzai noun: A Pashtun tribe of Pakistan.
oral adjective, noun /ˈɔː.ɹəl/: Relating to the mouth.
oral allergy syndrome noun: A food allergy consisting of a cluster of allergic reactions in the mouth and throat in response to eating certain fruits, nuts, and vegetables.
oral argument noun: A portion of a legal proceeding wherein the attorneys present their argument by speaking directly to the judge and answering the judge's questions.
oral availability noun: The quality of being efficacious when taken by mouth (usually of a medicinal drug).
oral candidiasis noun: Infection on the mucous membranes of the mouth due to yeast of the genus Candida.
oral cavity noun: The cavity of the mouth, especially the part of the mouth behind the gums and teeth that is bounded above by the hard and soft palates and below by the...
oral dam noun: Synonym of dental dam (“type of barrier for safe sex”).
oral exam noun: A type of assessment that evaluates a student's knowledge, skills, and abilities through verbal communication.
oral examination noun: Synonym of oral exam.
oral glucose noun: A medication high in glucose often given in a gel form to treat patients experiencing a diabetic crisis.
oral gratification noun: In Freudian psychology, the satisfaction felt in infancy when the need for food, especially from the mother's breast, is fulfilled, and which in later life...
oral history noun: The collection and study of historical information about individuals, families, important events, or everyday life using audiotapes, videotapes, or...
oral hygiene noun: The practice of keeping the mouth clean in order to prevent cavities (dental caries), gingivitis, periodontitis, bad breath (halitosis), and other dental...
oral law noun: A code of conduct in use in a given culture, religion or community, by which a body of rules of human behavior is transmitted by oral tradition and...
oral lore noun: oral tradition
oral mite anaphylaxis noun: A severe allergic reaction from ingesting food contaminated with specific mites.
oral mucositis noun: Inflammation of the mucus membranes of the mouth.
oral myology noun: The study and therapeutic intervention that deals with evaluating and treating the muscles in the mouth and face.
oral sex noun: Stimulation of another person's genitals or anus using the mouth, lips, and/or tongue.
oral stage noun: In Freudian psychoanalysis, the first stage of psychosexual development, during early infancy, when the baby's mouth is their primary erogenous zone.
oral surgeon noun: A specialist in oral surgery.
oral surgery noun: Any type of surgical procedure performed on the teeth, gums, jaws or other oral structures.
oral tradition noun: Cultural material transmitted orally from one generation to another.
oral vowel noun: A vowel that is produced without nasalization.
oralature noun: Oral as opposed to written language structured for aesthetic and similar purposes; the oral equivalent of literature.
oralcare noun: The care and hygiene of the mouth.
orale noun: A white silk veil with coloured stripes, sometimes worn by the pope.
oralisable adjective: Non-Oxford British English standard spelling of oralizable.
oralisation noun: The act or an act of oralising; the act or an act of turning something written into something oral.
oralise verb: To speak out something that is written, to turn something written into something oral.
oralism noun: A philosophy of education for the deaf, opposed to manualism, that uses spoken language consisting of lipreading, speech, the process of watching mouth...
oralist noun: A supporter of oralism.
oralistic adjective: Of or pertaining to oralism.
orality noun: The state of being oral.
oralizable adjective: Able to be oralized.
oralization noun: The act or an act of oralizing; the act or an act of turning something written into something oral.
oralize verb: To speak out something that is written, to turn something written into something oral.
oralizer noun: One who oralizes.
oralloy noun: Highly-enriched uranium.
orally adverb /ˈɔːɹəli/: By mouth.
orally disintegrating tablet noun: A pill designed to disintegrate in the mouth.
oralman noun: An ethnic Kazakh migrant from the diaspora (back) to Kazakhstan.
oralmost adjective: Located furthest in the oral direction.
oralnasal adjective: oronasal
oralness noun: The quality or condition of being oral.
Oram proper noun: A surname.
-orama suffix: Used to form, from one noun, a second meaning "wide view of" the first, or (with ironic reference to the preceding sense) "surfeit of", "overattention to",...
Oran proper noun: A city, port, and province of Algeria.
orancaya noun: Alternative form of orankay.
oranda noun: A goldfish characterized by a prominent raspberry-like hood encasing its head.
orang noun /ɔˈræŋ/: Clipping of orangutan.
Orang Asli noun: Several different indigenous people of Malaya and peninsular Thailand.
orang China bukan China noun: A mixed-race person with one Chinese parent.
Orang Laut noun /ˈoʊɹəŋ ˌlɑːuːt/: Any of several seafaring ethnic groups and tribes living around Singapore, peninsular Malaysia and the Indonesian Riau Islands.
orang-pendek noun: A cryptid reported to inhabit mountainous forests on the island of Sumatra. It is a ground-dwelling bipedal primate covered in short fur.
orang utan noun: Alternative form of orangutan.
orange adjective, noun, verb /ˈɒɹɪnd͡ʒ/: An evergreen tree of the genus Citrus such as Citrus sinensis which yields oranges (the fruit).
orange American adjective, noun: A white American who has orange-colored skin, used primarily in reference to Donald Trump.
orange baboon tarantula noun: An Old World species of tarantula, Pterinochilus murinus, found in Angola, as well as central and southern Africa, ranging in colours from red, orange and...
orange ball buddleja noun: orange-ball-tree (Buddleja globosa)
orange-ball-tree noun: A plant of species Buddleja globosa, native to Chile and Argentina.
orange-bellied parrot noun: Neophema chrysogaster, a species of grass parrot found in Australia.
orange bitey thing noun: Synonym of orange baboon tarantula.
orange blister beetle noun: A poisonous orange beetle, of the genus Nemognatha.
orange blossom noun: The fragrant white flower of the orange tree, Citrus sinensis.
orange blossom water noun: Synonym of orange flower water.
orange box noun: A piece of hardware or software that generates caller ID frequency-shift keying (FSK) signals to spoof caller ID information on the target's caller ID terminal.
orange-breasted sunbird noun: Any of the species Anthobaphes violacea of small, predominantly nectar-feeding birds, endemic to the fynbos shrubland biome of southwestern South Africa.
orange card noun: A proposed or hypothetical card indicating a foul as too serious for a yellow card but not serious enough for a red card.
orange chicken noun: An American Chinese dish of Hunanese origin made with fried chicken pieces in a sweet orange-flavored chili sauce glaze.
orange chips noun: A Black Country snack food of thick-cut, fluffy chips/fries that are deep-fried in orange-coloured batter until crispy.
orange chromide noun: Pseudetroplus maculatus, a cichlid of southern India and Sri Lanka.
orange-collar adjective: Relating to prison labor.
orange-crowned warbler noun: A species of New World warbler, Leiothlypis celata, found in North America.
orange daisy noun: A fleabane of species Erigeron aurantiacus.
orange dog noun: The caterpillar of the giant swallowtail butterfly, which feeds on the leaves of citrus.
orange drink noun: Any sugary, sometimes carbonated, orange-flavored drink, such as orangeade or orange squash.
orange drummer noun: Synonym of golden drummer.
orange dwarf noun: A small orange star of the main sequence.
orange filefish noun: A filefish of species Aluterus schoepfii, typically found along the Central American coast.
orange flag noun: A flag that is orange.
orange flower water noun: A clear, strongly flavoured and scented by-product of the distillation of fresh bitter-orange blossoms for their essential oil.
orange flowering jessamine noun: A plant, Cestrum aurantiacum
orange-footed scrubfowl noun: A species of megapode, Megapodius reinwardt, of Indonesia, New Guinea, and northern Australia.
orange foxtail noun: A species of grass, Alopecurus aequalis, native to Eurasia and North America.
Orange GGN noun: An orange azo dye, 1-(m-sulfophenylazo)-2-naphthol-6-sulfonic acid, used as a food colouring
orange goods noun: Products that are consumed and replaced moderately quickly, more frequently than yellow goods but less than red goods; e.g. clothing.
orange grove noun: A group of cultivated orange trees
orange gum noun: An Australian tree of species Angophora costata syn. Angophora lanceolata.
orange hawkweed noun: Any member of the species Pilosella aurantiaca.
orange Hokkaido noun: Synonym of red kuri squash.
orange jessamine noun: A south Asian shrub or small tree related to citrus, Murraya paniculata, grown for its evergreen foliage and fragrant flowers.
orange juice noun: The juice of squeezed oranges; used as a beverage or in cocktails. (This entry is a translation hub.)
orange-juicy adjective: Resembling or characteristic of orange juice.
orange lily noun: Lilium bulbiferum, a herbaceous European lily with underground bulbs and orange flowers.
orange-lined triggerfish noun: A fish, Balistapus undulatus
orange man bad phrase: A statement used to mock critics of the American politician Donald Trump, implying that they only oppose him because it is popular to do so, or because they...
orange milkweed noun: Asclepias tuberosa, a milkweed native to eastern North America, with clustered orange flowers.
orange mint noun: A mint that smells of oranges, now specifically the Eau de Cologne mint, Mentha × piperita var. citrata.
orange notice noun: A notice from Interpol warning of an imminent threat and danger to persons or property.
orange ochre noun: A large hesperiid butterfly, Trapezites eliena, inhabiting eucalyptus woodlands of coastal and montane eastern Australia.
orange peel noun: The skin of an orange, including the pith.
orange-peel bucket noun: A kind of grab bucket with separate hinged portions resembling the peel of an orange.
orange-peel fungus noun: A fungus, Aleuria aurantia
orange-peely adjective: Resembling or characteristic of orange peel.
orange pekoe noun: A high-quality grade of black tea from India and Sri Lanka.
orange pill noun, verb: A notional pill taken by those who have become dedicated to investing in Bitcoin.
orange pipefish noun: Maroubra yasudai, a species of pipefish.
orange puppy noun: Synonym of orange dog (“type of caterpillar”).
orange ringlet noun: A species of satyrine butterfly with orange wings, Hypocysta adiante, endemic to northern Australia.
orange roughy noun: An edible deep-sea fish (Hoplostethus atlanticus), of the slimehead family (Trachichthyidae).
orange sharpshooter noun: A proconiine leafhopper of species Bothrogonia addita, native to tropical Southeast Asia.
orange-spotted adjective: Alternative spelling of orangespotted.
orange-spotted bulbul noun: Pycnonotus bimaculatus, a species of perching bird.
orange-spotted drone fly noun: Eristalis anthophorina, a species of dronefly.
orange-spotted roach noun: Synonym of dubia roach (Blaptica dubia).
orange squash noun: A sweetened drink, made with oranges but often containing additional flavourings, that is served diluted with water.
orange staff sergeant noun: A nymphalid butterfly of species Athyma cama, of tropical and subtropical Asia.
orange stick noun: A thin stick used in manicuring, with one tapered and one pointed end.
orange sunshine noun: Lysergic acid diethylamide produced in California in the late 1960s in the form of orange tablets.
orange swift noun: A moth of species Triodia sylvina, found in Europe.
orange-thighed frog noun: Ranoidea xanthomera, an Australian tree frog.
orange-throated whiptail noun: Aspidoscelis hyperythrus, a species of teiid whiptail.
orange tip noun: Any of various pierid butterflies having orange tips to the upper forewings, especially Anthocharis cardamines, of Eurasia.
orange tree noun: Citrus sinensis, a fruit tree that bears oranges. (This entry is a translation hub.)
orange-wife noun: A woman who sells oranges.
orange wine noun: A type of wine made from white wine grapes whose skins are not removed.
orange-winged amazon noun: a species of parrot, Amazona amazonica.
orange-winged parrot noun: a species of parrot, Amazona amazonica
orangeade noun /ˈɒ.ɹɪnˌdʒeɪd/: A soft drink or a soda with an orange flavor.
orangeat noun /ɔɹ.æn.ʒæt/: Candied orange peel.
orangeberry noun: A shrub native to Australia and Southeast Asia, related related to citrus and having small pink, citrus-like fruits, Glycosmis pentaphylla.
Orangeburg proper noun: A hamlet and census-designated place in the town of Orangetown, Rockland County, New York, United States.
orangecello noun: A drink resembling limoncello but made with oranges rather than lemons. In Italian, this drink is actually called arancello, from arancia (“orange”)
orangeish adjective: Alternative spelling of orangish.
Orangeism noun: The principles or beliefs of the Loyal Orange Institution, commonly known as the Orange Order.
Orangeist noun: Alternative form of Orangist.
orangeite noun: A kind of kimberlite with phlogopite macrocrysts and microphenocrysts.
orangeless adjective: Without oranges.
orangelike adjective: Resembling or characteristic of an orange.
orangelo noun: A citrus fruit that is a cross between an orange and a grapefruit.
orangely adverb: In an orange manner.
Orangeman noun /ˈɒɹɪnd͡ʒmən/: A member of the Loyal Orange Institution or Orange Order, an international Protestant fraternal order advocating continued British rule over Northern Ireland.
orangeness noun: The quality of being orange in colour.
orangepill noun, verb: Alternative spelling of orange pill.
orangequat noun: Citrus aurantium × Citrus japonica
orangequit noun: A monotypic species of tanager (Euneornis campestris) endemic to Jamaica.
orangerie noun: Alternative form of orangery.
orangerita noun: A margarita cocktail made with orange.
orangeroot noun: The plant goldenseal (Hydrastis canadensis).
orangery noun /ˈɒrɪndʒərɪ/: A greenhouse in which orange trees are grown.
oranges and lemons noun: A traditional English children's game, in which a rhyme is chanted as the players file, in pairs, through an arch formed by two other players' clasped...
oranges with oranges noun: Synonym of apples to apples.
orangespotted adjective: Having orange spots
orangetini noun: A martini cocktail made with orange liqueur.
orangetip noun: Alternative spelling of orange tip.
Orangetown proper noun: A town in Rockland County, New York, United States.
orangette noun: A candied orange peel, usually covered in dark or milk chocolate.
Orangevale proper noun: A census-designated place in Sacramento County, California, United States.
Orangeville proper noun: A locality in the Wollondilly council area, eastern New South Wales, Australia.
Orangewoman noun: A female Orangeman.
orangewood noun: The wood of the orange tree.
orangeworm noun: A snout moth of the genus Amyelois that is a pest to some commercial crops
orangey adjective, noun: A Protestant, especially one that is a member of the Protestant unionist community of Northern Ireland.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0): each word's first meaning. A word with a page of its own links to it; for the rest, this line is PlainSpell's entry. Total under O: 20,049 words, in 67 parts.