English words: Oromian to orthodiagraphically

300 English words, part 38 of 67 of the words starting with O, A to Z. 19 have a page of their own.

English words Oromian to orthodiagraphically

Oromian adjective, noun: Of or from Oromia
Oromo noun /ˈɒrəmoʊ/: A member of a people of eastern Africa, Ethiopia and northern Kenya.
Oromocto proper noun: A river in New Brunswick, Canada.
oromotor adjective: Relating to the movement of the mouth.
oromucosal adjective: Relating to, or directed towards the mucous surfaces of the mouth (cheek).
oromucosally adverb: In an oromucosal manner
Oron proper noun: A commune in Moselle department, Grand Est, France.
oronasal adjective: Of or pertaining to the mouth and the nose
oronasally adverb: In an oronasal manner
oronasopharyngeal adjective: Relating to the oronasopharynx
oronasopharynx noun: The mouth, nose and pharynx
Orono proper noun: A community in the municipality of Clarington, Regional Municipality of Durham, Ontario, Canada.
Orontean adjective: Of or relating to the Orontes.
Orontes proper noun /ɔːˈɹɒntiːz/: A river in West Asia, about 400 km (250 mi) long, flowing from Lebanon through Syria before entering the Mediterranean Sea near Samandağ in Turkey.
Orontian adjective /ɔːˈɹɒnti.ən/: Alternative form of Orontean
oronym noun: The toponym of a mountain.
oronymy noun: The nomenclature of mountains, hills and other geographic rises.
oropendola noun: Any of a number of tropical birds related to the caciques, mostly in the genus Psarocolius, and, like the caciques, noted for living communally in large,...
Oropesa noun: A streamlined towed body used in minesweeping to keep the towed sweep at a determined depth and position relative to the sweeping ship.
Oropeza proper noun: A surname from Spanish
oropharyngeal adjective, noun /ˌɔː.ɹəʊ.fəˈɹɪn.d͡ʒi.əl/: Of or pertaining to both the mouth and the pharynx.
oropharyngeally adverb: In an oropharyngeal manner
oropharyngoesophageal adjective: Of or relating to the mouth, the pharynx and the esophagus.
oropharyngoscopy noun: endoscopy of the oropharynx
oropharynx noun: The oral part of the pharynx, reaching from the uvula to the level of the hyoid bone.
orophilic adjective: orophilous
orophilous adjective: Liking a subalpine habitat.
orophyte noun: Any plant that grows in a subalpine habitat.
Oropom noun: Any of the aboriginal inhabitants of much of Karamoja in Uganda and probably Turkana District in Kenya.
Oropouche fever noun: A tropical viral infection transmitted by biting midges and mosquitoes, causing fever, headache, muscle and joint pains, etc.
Oroqen adjective, noun: A member of an ethnic group inhabiting parts of Northern China.
ororotundity noun: The quality of being orotund (in various senses); orotundity.
oroselone noun: The furanocoumarin 8-prop-1-en-2-ylfuro[2,3-h]chromen-2-one present in angelica
orosensation noun: A false sensation of taste obtained by stimulation of the tongue.
orosensory adjective: Relating to oral senses (e.g., taste, oral kinesthetic sense), and especially the innervation that provides for them.
Orosi proper noun: A census-designated place in Tulare County, California, United States.
Orosian adjective: Of or relating to Paulus Orosius (born c. 375/385 – c. 420 AD), Roman priest, historian and theologian.
Orosirian adjective: Of a geologic period within the Paleoproterozoic era from about 2050 to 1800 million years ago.
orosomucoid noun: An acidoglycoprotein found in blood plasma
orosphere noun: A clump of oral cancer cells
Orosz proper noun: A surname from Hungarian.
orotactile adjective: That has to do with the sense of touch in mouth.
orotate noun: Any salt or ester of orotic acid.
orotemperate adjective: Describing a temperate mountain climate
orotherapy noun: The use of serum to treat disease.
orotic adjective: Of or pertaining to orotic acid or its derivatives
orotic acid noun /ɒˌɹɒt.ɪk ˈas.ɪd/: A crystalline acid which was discovered in milk and is a growth factor for various microorganisms (as Lactobacillus bulgaricus) and an intermediate in...
orotidine noun: A nucleoside formed by reaction of orotic acid with ribose
orotidylate noun: orotidine 5'-phosphate
orotomide noun: Any of a particular class of antifungal agents
orotone noun: A photographic print on glass, decorated with gold leaf or coloured with a gold pigment.
orotracheal adjective: Of or pertaining to the mouth and the trachea
orotracheally adverb: In an orotracheal manner
orotund adjective, noun /ˈɒɹə(ʊ)tʌnd/: Of a voice: characterized by clarity, fullness, smoothness, and strength of sound; hence, of a person: having a clear, full, and strong voice, appropriate...
orotundity noun /ɒɹəˈtʌndɪti/: The quality of being orotund.
orotundly adverb: In an orotund manner.
orovaginal adjective: oral and vaginal
Oroville proper noun: A city, the county seat of Butte County, California, United States.
oroxylin noun: Any of a group of methylated flavones present in plants of the genus Oroxylum
oroxyloside noun: Any glycoside of an oroxylin
oroxylum noun: Synonym of midnight horror
oroya noun: A hanging basket attached to a cable, anciently used in South America to cross ravines.
Oroya fever noun: Carrion's disease
Orozco proper noun: A surname.
orp verb: To complain, grumble, or be discontented.
Orpah proper noun: A Biblical figure, daughter-in-law of Naomi, wife of Chilion.
orpailleur noun: gold prospector, gold panner
orped adjective, verb: Bold, brave, valiant; active, alert; self-assured, hardy, vigorous.
orpedly adverb: Boldly; bravely; stoutly.
orpeko noun: A form of spirit possession or spiritual sickness among Maasai people, especially women.
-orph- interfix /ɔːf/: Used to form names of morphinan derivates used as opioid receptor antagonists/agonists.
orphan adjective, noun, suffix, verb /ˈɔːfən/: A person, especially a minor, both or (rarely) one of whose parents have died.
orphan acronym noun: An existing acronym which has been redefined by some authority (such as a company legally defining its own name) as a nonacronymous name, severing its link...
orphan asylum noun: orphanage
orphan crushing machine noun: A notional machine representing a system or state of affairs that obviously facilitates suffering but is not acknowledged or examined, or for which no...
orphan disease noun: Any disease for which drugs are not usually developed because it is too rare to make the development profitable.
orphan drug noun: A medicinal drug which is effective in the treatment of some disease(s), but which is not manufactured or marketed because the demand is insufficient to...
orphan house noun: An orphanage.
orphan initialism noun: An existing initialism which has been redefined as a nonacronymous name, severing its link to its previous meaning.
orphan John noun: Hylotelephium telephium, a succulent perennial ground cover native to Eurasia.
orphan medicine noun: orphan drug
orphan off verb: To treat (a child) as an orphan, such as by sending them into foster care or adopting them out.
orphan page noun: A webpage that is not accessible from any other page on a website, and can only be accessed by entering the direct URL.
orphan receptor noun: A receptor that has a similar structure to other identified receptors but whose endogenous ligand has not yet been identified
orphan's court noun: Synonym of probate court.
orphan source noun: A self-contained radioactive source that is no longer under regulatory control, for example because it has been abandoned or misplaced.
orphan star noun: a star that is not part of any galaxy, but exists in intergalactic space instead
orphan tears noun: Synonym of dextromethorphan.
orphan train noun: One of the trains, operating between 1854 and 1929, that transported orphaned and homeless children from crowded Eastern cities of the United States to...
orphan work noun: A copyright-protected work for which rightsholders are positively indeterminate or uncontactable.
orphanage noun /ˈɔː(ɹ)fənɪd͡ʒ/: A residential institution for the care and protection of orphans.
orphanarium noun /ˌɔː.fəˈnɛəɹi.əm/: An orphanage.
orphancy noun: The state of being an orphan.
orphandom noun: The state of being an orphan.
orphaned adjective, verb: Made an orphan by the death of one's parents.
orphaned house noun: Synonym of orphan house; a home with stairs-only access.
orphaned negative noun: A negative word or term (such as "disgruntled", "uncouth" or "incognito") that has no positive equivalent in current use.
orphaned tsunami noun: A historical tsunami for which no earthquake record exists.
orphaned work noun: Alternative form of orphan work.
orphaner noun: Synonym of orphan.
orphaness noun: A female orphan.
orphanet noun: A young or little orphan.
orphanhood noun: The state of being an orphan; the losing of both parents through their death.
orphanin noun: Synonym of nociceptin.
orphanise verb: Non-Oxford British English standard spelling of orphanize.
orphanish adjective: Resembling or characteristic of an orphan.
orphanism noun: The state of being an orphan.
orphanity noun: The state of being an orphan; orphanhood.
orphanize verb: To orphan.
orphanlike adjective: Resembling or characteristic of an orphan.
orphanotrophism noun: The care and support of orphans.
orphanotrophium noun: A kind of orphanage in ancient times.
orphanotrophy noun: A hospital for orphans.
orphanry noun: The state of being an orphan.
orphans' court noun: Alternative form of orphan's court.
orphanship noun: The state of being an orphan.
orphany noun: Synonym of orphanry.
orpharion noun /ɔːˈfæɹ.i.ən/: A musical instrument of the Renaissance, part of the cittern family, whose metal strings are tuned like a lute's and plucked with the fingers.
Orphean adjective: Of or pertaining to Orpheus, the mythical poet and musician.
Orphean warbler noun: the bird western Orphean warbler, Sylvia hortensis, now sometimes Curruca hortensis
orpheite noun: A trigonal-hexagonal scalenohedral mineral containing aluminum, hydrogen, lead, oxygen, phosphorus, and sulfur.
orpheline noun /ˈɔː(ɹ)fəlɪn/: An orphan.
orphenadol noun: A combination of orphenadrine and paracetamol
orphenadrine noun /ɔː(ɹ)ˈfɛnədɹɪn/: An anticholinergic drug of the ethanolamine antihistamine class, closely related to diphenhydramine, used to treat painful muscle spasm and some aspects of...
orphéon noun: A French male choral society.
orpheonist noun: A member of an orphéon.
orpheoreon noun: Alternative form of orpharion.
orpherion noun: Alternative form of orpharion.
Orpheus proper noun /ˈɔɹ.fi.əs/: A Thracian musician and poet, who failed to retrieve his wife Eurydice from Hades.
Orphic adjective, noun /ˈɔːfɪk/: Of or pertaining to Orphism and its doctrines and rituals.
Orphic egg noun: An ovoid vessel formerly used by alchemists for sublimation; an aludel.
Orphical adjective: Orphic
Orphically adverb: In an Orphic manner.
-orphine suffix /ˈɔː.fiːn/: Used to form names of morphinan derivates used as opioid receptor antagonists/agonists.
orphing noun: Pronunciation spelling of orphan.
Orphism proper noun: A religious movement in antiquity, supposed to have been founded by Orpheus.
Orphist noun: A member of the Orphism religious movement.
orphon noun: A gene located outside the main chromosomal locus.
-orphone suffix /ˈɔː.fəʊn/: Used to form names of morphinan derivates used as opioid receptor antagonists/agonists.
orphray noun: Alternative spelling of orphrey.
orphrey noun /ˈɔːfɹi/: Any elaborate embroidery, especially when made of gold thread; an object (such as clothing or fabric) adorned with such embroidery.
orpiment noun /ˈɔːpɪmənt/: Arsenic trisulphide, occurring naturally in crystals or massive deposits, formerly used as a dye or pigment.
orpin noun: Alternative form of orpine (“the plant or the pigment”).
orpine noun /ˈɔːp(ʌ)ɪn/: Any of several temperate succulent plants of the family Crassulaceae, that have clusters of purple flowers, especially Hylotelephium telephium.
Orpington noun /ˈɔːpɪŋtən/: A breed of chicken, originally being one of four colours (black, white, buff or blue).
ORR noun: Initialism of overall response rate or objective response rate.
orra adjective: Superfluous; odd, unmatched, left over.
Orrego proper noun: A surname from Spanish.
Orrell proper noun: A suburban area and ward in the Metropolitan Borough of Wigan, Greater Manchester, England (OS grid ref SD5305).
Orren proper noun: A male given name.
orrery noun /ˈɒɹ.ə.ɹi/: A clockwork model of any given solar system.
'orrible adjective: Pronunciation spelling of horrible.
'orribly adverb: Pronunciation spelling of horribly.
Orrick proper noun: A surname from Old English.
'orrid adjective: Pronunciation spelling of horrid.
Orrin proper noun: A male given name from Irish of obscure origin, possibly a variant of Oren or Oran.
Orrington proper noun: A town in Penobscot County, Maine, United States.
orris noun /ˈɒɹɪs/: Any of several irises that have a fragrant root, especially Iris × germanica.
orris pea noun: An issue pea made from orris root.
Orrison proper noun: A surname transferred from the given name.
orrisroot noun: The root of the orris.
ors noun, suffix: Initialism of oral rehydration solution.
ORSA noun: Initialism of oxacillin-resistant Staphylococcus aureus; synonym of MRSA, now seldom used.
Orsat apparatus noun: A piece of laboratory equipment used to analyze a gas sample (typically fossil fuel flue gas) for its oxygen, carbon monoxide and carbon dioxide content.
Orsay proper noun: A commune in Essonne department, Île-de-France, France.
orschallite noun: A trigonal-hexagonal scalenohedral colorless mineral containing calcium, hydrogen, oxygen, and sulfur.
orse adjective, adverb, noun: otherwise.
orsedew noun: Dutch metal; bronze leaf used as imitation gold leaf.
orsedue noun: Alternative form of orsedew.
orseille noun: orchil (lichen or dye)
orsellate noun: Any salt or ester of orsellic acid.
orsellic acid noun: An acid found in certain lichens, such as orchil.
orsellinate noun: Any salt or ester of orsellinic acid.
orsellinic acid noun: A phenolic carboxylic acid, 2,4-dihydroxy-6-methylbenzoic acid, found in some lichens
Orser proper noun: A surname from Dutch.
Orsha proper noun: A city in the Vitebsk Region of Belarus.
Orsino proper noun: A surname from Italian.
Orsk proper noun: A city in Orsk, Orenburg Oblast, Asian Russia, Russia.
orsolobid noun: Any spider in the family Orsolobidae.
Orson proper noun /ˈɔɹsən/: A surname.
orsum adjective: Alternative spelling of awesome.
ort noun, verb /ɔːt/: A fragment; a scrap of leftover food; any remainder; a piece of refuse.
Orta proper noun: A surname.
ortalid noun: A fly of the family Ortalidae (now Ulidiidae).
ortanique noun: A cross between an orange and a tangerine.
ortataxel noun /ˌɔː(ɹ)təˈtæksəl/: A particular drug used in chemotherapy.
Ortega proper noun: A surname from Spanish.
orter contraction: Contraction of ought to.
orteronel noun: A non-steroidal antiandrogen that was investigated as a cancer treatment but later dropped.
ortet noun: The original single parent plant from which a clone ultimately derives.
ortetamine noun: A stimulant drug of the amphetamine class.
orth- adjective, prefix: Alternative form of ortho-.
orthœpy noun: Nonstandard spelling of orthoepy.
orthagan noun: Any pyralid moth of the genus Orthaga.
orthagonal adjective: Alternative spelling of orthogonal.
orthal adjective: Enacted by vertical motion (in relation to mastication)
orthant noun: An n-dimensional generalization of the quadrant (in two-dimensional Cartesian space) and octant (in three-dimensional space).
orthaxial adjective: that has a straight vertebral axis
orthel noun: A kind of soil that shows little or no cryoturbation.
orthenine noun: A particular steroid glycoside.
orthent noun: A kind of shallow or "skeletal" soil, found on recent erosional surfaces or very old landforms completely devoid of weatherable minerals.
orthesis noun: An orthopedic prosthesis
Orthez proper noun: A town in Pyrénées-Atlantiques department, Nouvelle-Aquitaine, France.
ortheziid noun: Any scale insect of the family Ortheziidae.
orthian adjective: Denoting a type of singing at a very high pitch.
orthic adjective: orthoclastic
orthicon noun: An early TV camera tube. (Abbreviation of orthoconoscope).
orthiconoscope noun: Alternative form of orthoconoscope.
orthid noun: A brachiopod shell of the genus †Orthis (or allied genera) in the family †Orthidae.
orthide noun: Alternative form of orthid.
orthidic adjective: Relating to orthids.
orthite noun: A variety of allanite occurring in slender prismatic crystals
ortho noun, prefix /ɔː.θə-/: Right angle, perpendicular.
ortho-amphibolite noun: Alternative form of orthoamphibolite.
ortho-chloronitrobenzene noun: An aromatic organic compound with the molecular formula C₆H₄ClNO₂.
ortho-nitrotoluene noun: Alternative form of orthonitrotoluene.
orthoacetate noun: Any orthoester, formally derived from acetic acid, of general formula CH₃C(OR)₃
orthoacid noun: the member of a series of oxyacids of a particular element that has the highest number of hydroxyl groups
orthoaluminate noun: A mixed metal oxide containing one aluminium three oxygen atoms in each formula, MAlO₃
orthoamphibole noun: An amphibole with an orthorhombic structure.
orthoamphibolite noun: Metamorphic rock composed mostly of amphibole, plagioclase, with lesser amounts of epidote, zoisite, chlorite, quartz, titanite, and accessory leucoxene,...
orthoarsenite noun: The simple oxyanion of arsenic AsO₃³⁻; any salt containing this anion
orthoavulavirus noun: Any avulavirus of the genus Orthoavulavirus
orthobenzoate noun: Any orthoester, formally derived from benzoic acid, of general formula C₆H₅-C(OR)₃
orthobenzoquinone noun: One of the two isomers of quinone, 1,2-benzoquinone.
orthobicupola noun: A bicupola in which the bases have the same orientation
orthobiologic noun: A biological material used to improve the healing of broken bones and injured muscles, tendons and ligaments
orthobirotunda noun: A birotunda in which the bases have the same orientation.
orthoborate noun: Any anion derived from orthoboric acid; any salt containing this anion
orthoboric adjective: boric (especially when compared with other oxyacid species of boron)
orthoboric acid noun: Any of several poorly-characterized acids that are hydrates of boric oxide
orthobothriotaxic adjective: Relating to orthobothriotaxy.
orthobothriotaxy noun: The evolution of the form of bothria in animals
orthobrannerite noun: An orthorhombic-disphenoidal mineral containing hydrogen, oxygen, titanium, and uranium.
orthobro noun: A term for a young man, typically a convert or inquirer into Eastern Orthodox Christianity, who engages with the faith primarily online or superficially...
orthobunyaviral adjective: Relating to orthobunyaviruses
orthobunyavirus noun: Any of the genus Orthobunyavirus of bunyaviruses
orthocaine noun: Methyl m-amino-p-hydroxybenzoate, a fine white crystalline powder used as an anesthetic on open wounds.
orthocarbonate noun: Any polyether, of general formula C(O-R)₄, formally derived from orthocarbonic acid
orthocarbonic acid noun: The hypothetical compound C(OH)₄ known only as its derivatives, the orthocarbonates
orthocardia noun: the quality of having a "right heart"–proper inner attitudes, desires, and motivations
orthocclusion noun: Normal occlusion.
orthocenter noun: One of the centers (UK:centres) of a triangle, defined as being the intersection of its three altitudes; in an acute triangle, it is inside the triangle; in...
orthocentral adjective: Relating to the orthocenter.
orthocentre noun: Alternative form of orthocenter.
orthocentric adjective: Having all three pairs of opposite edges perpendicular.
orthocephalic adjective: normocephalic
orthocephalous adjective: Alternative form of orthocephalic.
orthocephaly noun: The condition of being orthocephalic
orthoceracone noun: A shell which has a straight cone shape.
orthoceraconic adjective: Relating to, composed of, or having the form of an orthoceracone.
orthoceras noun: Any nautiloid cephalopod mollusc of the genus Orthoceras, known only as fossils
orthoceratid noun: Any in the family Orthoceratidae of extinct cephalopods.
orthoceratite noun: An orthoceras, or fossil shell thereof.
orthoceratoid noun: Any extinct cephalopod of the subclass †Orthoceratoidea
orthocerid noun: a cephalopod of the extinct order Orthocerida.
orthochamosite noun: An orthorhombic mineral containing aluminum, hydrogen, iron, magnesium, oxygen, and silicon.
orthocharmonium noun: The form of charmonium in which the spins of the two quarks are parallel.
orthochess noun /ˌɔːθəˈt͡ʃɛs/: The conventional game and rules of chess.
orthochlorobenzalmalononitrile noun: The active ingredient in most tear gas, C₁₀H₅ClN₂, also called CS gas
orthochloronitrobenzene noun: Alternative form of ortho-chloronitrobenzene.
orthochoanite noun: Any nautiloid cephalopod of the suborder Orthochoanites
orthochoanitic adjective: Pertaining to the obsolete cephalopod suborder Orthochoanites.
orthochromasia noun: Synonym of orthochromasy.
orthochromasy noun: The property of a stain to not change color when binding to something else.
orthochromatic adjective /ˈɔː.θə.kɹəˈmæt.ɪk/: Being uniformly sensitive across the entire visible range, and thus reproducing colours faithfully
orthochromatism noun: Quality of being orthochromatic.
orthochromatize verb: To make orthochromatic
orthochromatophilic adjective: Describing an erythroblast, derived from a polychromatophilic one, that is approaching the colour of a mature erythrocyte
orthochromite noun: Any of a group of mixed oxides of chromium and another metal (typically a rare earth element) of general formula MCrO₃
orthochronous adjective: Describing any Lorentz transformation or Galilean transformation which preserves the direction of time
orthochrysotile noun: An orthorhombic polytype of chrysotile.
orthoclad noun: Any midge of the chironomid subfamily Orthocladiinae
orthoclase noun: Potassium aluminum silicate, KAlSi₃O₈, a common feldspar of igneous, plutonic, and metamorphic rocks. Orthoclase is the main feldspar of pegmatite...
orthoclasic adjective: Of or relating to orthoclase.
orthoclastic adjective: Having cleavage planes at right angles, as in orthoclase.
orthocleavage noun: cleavage of 1,2 substituents
orthocomplement noun: An element of an ortholattice which is the result of applying an orthocomplementation function to a given element (of that ortholattice) (of which it is...
orthocomplementation noun: An involution on a complemented lattice which is order-reversing and maps each element to a complement.
orthocomplemented adjective: Having orthocomplementation.
orthocone noun: A long straight shell of a nautiloid cephalopod.
orthoconglomerate noun: A conglomerate containing mostly clasts
orthoconic adjective: Having or being a (mollusc) shell which is conical and straight (not curved or spiraled).
orthoconoscope noun: Synonym of orthicon.
Orthocorybantian adjective, noun: Synonym of Massagetean.
orthocousin noun: Any of two or more cousins who are the children of siblings of identical gender, i.e. children of brothers or of sisters.
orthocresol noun: Ortho isomer of cresol.
orthocumulate noun: A cumulate rock in which the groundmass is of different composition to the accumulated crystals.
orthocupolarotunda noun: A cupolarotunda in which the bases have the same orientation.
orthod noun: A form of orthic spodosol.
orthodata noun: Constraints or assessments applied to transactional or warehoused data to assure data quality.
orthodenticle noun /ˌɔː(ɹ)θəˈdɛntɪkəl/: A homeobox gene involved in the development of the head.
orthodentin noun: A form of dentin, composed of straight tubes, in the teeth of mammals.
orthodentine noun: Alternative spelling of orthodentin
orthodeoxia noun: accentuation of arterial hypoxemia upon standing upright
orthodiagonal adjective, noun: Having diagonals that are perpendicular to each other.
orthodiagram noun: The record made by an orthodiagraph.
orthodiagraph noun: An instrument used to determine the true contour and dimensions of any internal organ or other object rendered visible by X-rays, the latter being deflected...
orthodiagraphic adjective: Relating to orthodiagraphy.
orthodiagraphically adverb: By means of orthodiagraphy.

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.