English words: oriostomatid to Oromia

300 English words, part 37 of 67 of the words starting with O, A to Z. 33 have a page of their own.

English words oriostomatid to Oromia

oriostomatid noun: Any extinct sea snail in the family Oriostomatidae.
oripavine noun: An opiate alkaloid 6,7,8,14-tetradehydro-4,5α-epoxy-6-methoxy-17-methylmorphinan-3-ol that is a metabolite of thebaine
orisa noun: Alternative spelling of orisha.
oriscus noun: An ornamental neume of unclear meaning, usually found added to another neume as an auxiliary note.
orisha noun /ˈɒɹɪʃɑː/: A divine entity in Yoruba religion that possesses the supernatural capability of reflecting some of the manifestations of Olódùmarè
Oriskany proper noun /əˈɹɪskəni/: A village in Oneida County, New York, United States.
orismological adjective: Of or pertaining to orismology.
orismologist noun: One who can explain technical terms; a person who engages in orismology.
orismology noun: The explanation of technical terms.
orison noun /ˈɒɹɪsən/: A prayer.
Orissa proper noun: Former name of Odisha: A state in eastern India.
oritang noun: A slow-cooked Korean stew of duck and vegetables.
oritavancin noun: A glycopeptide antibiotic being developed for the treatment of serious Gram-positive infections.
orite adjective, interjection: Pronunciation spelling of alright.
-orium suffix /-ˈɔːɹ.ɪ.əm/: Forming nouns denoting a place for a particular function or thing.
orixa noun: Alternative spelling of orisha.
Oriya noun /ɔˈrijə/: An inhabitant of Odisha.
Orizaba proper noun: A city and municipality in the Mexican state of Veracruz.
Orizaban adjective, noun: Of or relating to Orizaba.
ork noun: Alternative spelling of orc.
ork pop noun: Alternative spelling of ork-pop.
Orkhon noun: A sheep of a Mongolian breed developed in 1961, reared primarily for wool.
orkish adjective: Of, pertaining to, or sharing similarities with an orc.
orkishness noun: Alternative form of orcishness.
Orkney proper noun /ˈɔɾkne/: Ellipsis of Orkney Islands.
Orkney skiff noun: A fishing skiff used off the Orkney Islands of Scotland.
Orkneyan adjective, noun: Of or pertaining to the Orkney Islands.
Orkneys proper noun: Orkney Islands
orkoiyot noun: A spiritual king and military leader of the Nandi and Kipsigis people of Kenya.
Orkon noun: Alternative form of Orkhon.
orl adverb, noun /ɔːl/: An alder tree.
orl fly noun: An alderfly, perhaps specifically of the species Sialis lutaria.
Orla proper noun: A female given name from Irish.
Orland proper noun: A surname.
orlandiite noun: A triclinic-pinacoidal mineral containing chlorine, hydrogen, lead, oxygen, and selenium.
Orlando proper noun /ɔɹˈlæn.doʊ/: A male given name from Italian.
Orlandoite noun: A person from or resident of Orlando, Florida.
orlay noun: Fate, destiny.
orle noun /ɔːl/: A bordure that runs around the outline of a shield without touching the edge.
Orleanian adjective: Of or relating to a period of geologic time 20 to 16 million years ago, within the Miocene, preceding the Astaracian age and following the Agenian age.
Orleanism noun: The doctrines of the Orléanists.
Orléanist noun: A member of a French right-wing (except for 1814–1830) faction that arose out of the French Revolution, as opposed to the legitimists.
Orleans noun /ˈɔɹ.li.ənz/: A cloth made of worsted and cotton, used for making clothes.
Orleans plum noun: A French-originated culinary plum of the species Prunus domestica, usually a blue, medium-sized, round fruit.
orled adjective: Furnished with an orle (or inner border), either a simple border, or a repeated closed repetition of a symbol.
orling noun /ˈɔːlɪŋ/: A stunted child.
orlistat noun: A drug designed to treat obesity
orlo noun: A Spanish wind instrument, possibly a crumhorn.
Orloff proper noun: A surname from Russian.
Orlon noun: a synthetic fibre used in yarn and knitwear
orlong noun: A Malay unit of area, equivalent to 1⅓ acres, and made up of 20 jumbas.
orlop noun: The platform over the hold of a ship that makes up the fourth or lowest deck, hence in full called orlop deck, especially of a warship.
orlop deck noun: An orlop, the lowest deck in a ship.
Orlov proper noun: A surname from Russian.
Orlowski proper noun: A surname from Polish.
Orly proper noun /ˈɔɹ.li/: A city and commune of the department of Val-de-Marne, region of Île-de-France, France.
orlymanite noun: A trigonal dark brown mineral containing calcium, hydrogen, manganese, oxygen, and silicon.
ORM noun: Initialism of object–relational mapping.
Orme proper noun /ɔːm/: A surname from Old Norse.
ormeloxifene noun: A selective estrogen receptor modulator.
ormer noun /ˈɔːmə/: An abalone or sea-ear, particularly Haliotis tuberculata, common in the Channel Islands.
ormering noun /ˈɔːməɹɪŋ/: The gathering of ormers; ormer-collecting.
Ormerod proper noun: A surname.
Ormesby proper noun: A suburban area in Middlesbrough borough and Redcar and Cleveland borough, North Yorkshire, England (OS grid ref NZ5317).
ormesine noun: Alternative form of armozeen.
ormetoprim noun: A dihydrofolate reductase inhibitor.
orming adjective /ˈɔːmɪŋ/: Talk and awkward
Ormiston proper noun: A village in East Lothian council area, Scotland (OS grid ref NT4169).
ormizet noun: An astringent preparation of clay saturated with formic acid.
Ormoc proper noun /ʔoɾˈmok/: A city in Leyte, Philippines.
ormolu adjective, noun, verb /ˈɔː(ɹ)məˌluː/: Golden or gilded brass or bronze used for decorative purposes.
Ormond proper noun: A surname.
Ormonde proper noun: A surname from Irish.
Ormondian adjective, noun: In support of or pertaining to Thomas Butler, especially as regards the faction that supported him in the Desmond Rebellions.
Ormrod proper noun: A surname.
Ormsby proper noun: A surname from Old Norse.
Ormsby filter noun: A filter of trapezoidal shape specified by four corner frequencies, f1 through f4. The filter rejects below f1 and above f4, is linear from f1 to f2 and...
Ormskirk proper noun: A market town in West Lancashire district, Lancashire, England (OS grid ref SD4108).
Ormskirk terrier noun: Synonym of Lancashire Heeler.
Ormston proper noun: A surname.
Ormus proper noun /ˈɔːməs/: A kingdom located in the Persian Gulf from the 10th century to the 17th century.
ormyrid noun: Any wasp in the family Ormyridae.
orn adjective, noun, verb /ɔː(ɹ)n/: Alternative form of thorn
ornament noun, verb /ˈɔː(ɹ)nəmənt/: An element of decoration; that which embellishes or adorns.
ornamental adjective, noun /ˌɔː.nəˈmɛn.təl/: Serving as an ornament; having no purpose other than to make more beautiful.
ornamental hermit noun: A person hired to live in a specially built, rustic hermitage on an estate; hired in the 18th and early 19th centuries by wealthy landowners with strict...
ornamentalism noun: Any artistic or architectural style characterised by ornamentation.
ornamentalist noun: An artist who favours an ornamental style.
ornamentality noun: The quality of being ornamental.
ornamentalize verb: To make ornamental.
ornamentally adverb: In an ornamental way.
ornamentalness noun: The quality of being ornamental.
ornamentary adjective: Ornamental.
ornamentation noun: Decoration, adornment or embellishment.
ornamentational adjective: Relating to ornamentation
ornamenter noun: Someone who ornaments; a decorator.
ornamentist noun: One who ornaments; a decorator.
ornamentless adjective: Lacking ornamentation
ornamentlessness noun: Absence of ornaments.
ornamentor noun: One who ornaments.
ornary adjective: Alternative spelling of ornery.
ornate adjective, verb /ɔɹˈneɪt/: Elaborately ornamented, often to excess.
ornate aphid noun: An aphid of species Myzus ornatus.
ornate hawk-eagle noun: Spizaetus ornatus, a large bird of prey that is native to Central and South America.
ornate horned toad noun: A large carnivorous horned toad of species Ceratophrys ornata, with sharp tooth-like projections in its very large mouth.
ornate rainbowfish noun: Rhadinocentrus ornatus, a species of eastern-Australian rainbowfish.
ornate shrew noun: The shrew Sorex ornatus.
ornate tinamou noun: A tinamou, Nothoprocta ornata.
ornately adverb: In an ornate manner.
ornateness noun: The state of being ornate.
ornative adjective, noun /ˈɔː(ɹ)nətɪv/: A noun case that means "endowed with" or "supplied with".
ornatrix noun: A tirewoman, an adorner.
ornature noun: Decoration; ornamentation.
orné adjective: ornamental
ornee adjective: Alternative spelling of orné.
orneodid noun: Any moth in the family Orneodidae, a synonym of the Alucitidae.
ornerily adverb: In an ornery manner.
orneriness noun: The state of being ornery.
ornery adjective /ˈɔːnəɹi/: Disagreeable, stubborn, and troublesome to deal with; cantankerous.
Ornette proper noun: A male given name.
ornge noun /ˈɔɹnd͡ʒ/: Pronunciation spelling of orange.
ornibactin noun: A siderophore produced by the helicobacter Burkholderia cenocepacia
ornidazole noun: A particular kind of drug that cures some protozoan infections.
ornify verb: To ornament.
ornipressin noun: A vasoconstrictor, haemostatic and renal agent.
ornis noun: A bird.
ornith- noun, prefix: Alternative form of ornitho-.
ornithic adjective /ɔː(ɹ)ˈnɪθɪk/: Of or pertaining to birds.
ornithichnite noun: A fossilised footprint left by a bird.
ornithichnology noun: The branch of science that deals with ornithichnites (fossilised bird footprints).
ornithinaemia noun: Alternative form of ornithinemia.
ornithine noun: An amino acid, 2,5-diaminopentanoic acid, that is not present in protein, but is an intermediate in the biosynthesis of urea (the urea cycle).
ornithine carbamoyltransferase noun: The enzyme ornithine transcarbamylase.
ornithine cycle noun: The urea cycle.
ornithine transcarbamylase noun: An enzyme that catalyzes the reaction between carbamoyl phosphate and ornithine to form citrulline and phosphate.
ornithine transcarbamylase deficiency noun: A rare genetic metabolic disorder of the urea cycle. Abbreviated as OTC.
ornithischian noun: Any of the order Ornithischia of typically herbivorous dinosaurs that have a pelvic structure similar to that of birds.
ornithivorous adjective: feeding on birds
ornitho- prefix: of or pertaining to birds
ornithocheirid noun: Any pterosaur in the family Ornithocheiridae.
ornithocheiroid noun: Any pterosaur of the clade Ornithocheiroidea
ornithocheiromorph noun: a member of the clade Ornithocheiromorpha.
ornithochore noun: A plant whose spores, seeds, or fruits are dispersed by birds.
ornithochoric adjective: Relating to ornithochory
ornithochorous adjective: Spread, or having seeds (in fleshy fruits) that are dispersed, by birds.
ornithochory noun: The dispersal of seeds by birds
ornithocoprophilic adjective: Thriving in the presence of bird excrement.
ornithocoprophilous adjective: Thriving in habitats rich in bird feces.
ornithodiran noun: Any birdlike reptile of the clade Ornithodira.
ornithodorid noun: Any soft tick in the family Ornithodoridae, a synonym of the Argasidae.
ornithodorin noun: A polypeptide thrombin inhibitor present in the soft tick Ornithodoros moubata
ornithogale noun: ornithogalum, star-of-Bethlehem
ornithogalum noun: Any plant of the genus Ornithogalum.
ornithogenic adjective: Formed by birds.
ornithogeographer noun: One who studies ornithogeography.
ornithogeographic adjective: Relating to ornithogeography.
ornithogeographical adjective: Relating to ornithogeography.
ornithogeography noun: The study of the geological distribution of birds.
ornithography noun: The scientific description of birds.
ornithoid adjective, noun: Resembling or characteristic of a bird.
ornithoidichnite noun: A fossil track resembling that of a bird.
ornithol noun: Abbreviation of ornithology.
ornitholestid noun: Any member of the family †Ornitholestidae, now superseded by family †Compsognathidae.
ornitholite noun: The fossilised remains of a bird.
ornithologer noun: An ornithologist.
ornithologic adjective /ˌɔːnɪθəˈlɒd͡ʒɪk/: Of or relating to ornithology; ornithological.
ornithological adjective /ˌɔːnɪθəˈlɒd͡ʒɪkəl/: Of or pertaining to ornithology.
ornithologically adverb /ˌɔːnɪθəˈlɒd͡ʒɪkli/: In terms of ornithology.
ornithologist noun /ˌɔːnɪˈθɒləd͡ʒɪst/: A person who studies or practices ornithology.
ornithologize verb /ˌɔːnɪˈθɒləd͡ʒaɪz/: To practise ornithology.
ornithology noun /ˌɔːnɪˈθɒlədʒi/: The branch of zoology that deals with the scientific study of birds.
ornithomancer noun: A practitioner of ornithomancy.
ornithomancy noun: Divination by means of birds, especially from their behaviour, flight, vocalisations, etc.
ornithomantic adjective: Relating to ornithomancy.
ornithomimid noun: Any of the family Ornithomimidae of dinosaurs.
ornithomimosaur noun: Any of several theropod dinosaurs, of the clade Ornithomimosauria, that bore a superficial resemblance to modern ostriches
ornithomimosaurian noun: Any theropod dinosaur of the clade Ornithomimosauria
ornithomimus noun /oɹˌnɪ.θoʊˈmaɪ.məs/: Any relatively small theropod dinosaur of the genus †Ornithomimus, the first genus of the ornithomimids to be described.
ornithomorph noun: A figure in ancient art resembling a bird.
ornithomorphic adjective: Shaped like a bird.
ornithon noun: An aviary; a poultry house.
ornithonym noun: The name of a (species of) bird.
ornithonymy noun: The naming of birds; the creation of common names for birds; the use of bird names.
ornithophaenology noun: The scientific study of the migration of birds
ornithophage noun: Any organism that eats birds.
ornithophagic adjective: That feeds on birds
ornithophagous adjective: That feeds on birds.
ornithophagy noun: The condition of being ornithophagous.
ornithophile noun: A person who loves birds; a bird-lover.
ornithophilia noun: Love for birds.
ornithophilic adjective: Fond of birds.
ornithophilist noun: A lover of birds; an ornithophile.
ornithophilous adjective: Thriving in the presence of birds.
ornithophily noun: pollination by birds
ornithophobe noun: One who exhibits ornithophobia, the fear of birds.
ornithophobia noun /ˌɔɹnɪθəˈfoʊbiə/: Fear of birds.
ornithophobic adjective, noun: Having or relating to ornithophobia, the fear of birds.
ornithopod noun: A type of bipedal, herbivorous, bird-hipped dinosaur from the Cretaceous period, found on all seven continents.
ornithopodan noun: Synonym of ornithopod (“dinosaur of the clade Ornithopoda”).
ornithopodous adjective: Having feet like those of a bird.
ornithopter noun /ˈɔː.nɪˌθɒp.tə/: An aircraft that generates lift through the flapping of its wings.
ornithorhynchid noun: A duck-billed platypus, or any of its extinct relatives in the family Ornithorhynchidae.
ornithorhynchus noun /ˌɔː(ɹ)nɪθəˈɹɪŋkəs/: A platypus (genus Ornithorhynchus).
ornithoscelidan noun /ˌɔː(ɹ)nɪθəˈsɛlɪdən/: Any of the Dinosauria, formerly known as Ornithoscelida.
ornithoscopic adjective: Relating to birdwatching.
ornithoscopist noun: A birdwatcher.
ornithoscopy noun: birdwatching
ornithosis noun: A zoonotic infectious disease (of birds) caused by a bacterium called Chlamydia psittaci, it can be transmitted to humans and other animals. When carried by...
ornithosuchid noun: Any pseudosuchian in the family Ornithosuchidae.
ornithothoracine noun: Any avialan of the clade Ornithothoraces
ornithotic adjective: Of or relating to ornithosis.
ornithotomist noun: Someone who is skilled in ornithotomy.
ornithotomy noun: The anatomy or dissection of birds.
ornithuran noun: Synonym of ornithurine.
ornithurine noun: A bird of the clade Ornithurae.
ornithuromorph noun: Any bird of the group Ornithuromorpha.
ornot particle: Alternative form of or not.
oro- prefix /ɔː.ɹə(ʊ)/: Of or pertaining to the mouth.
oro-maxillo-facial adjective: Alternative form of oromaxillofacial.
oro-pharynx noun: Alternative spelling of oropharynx.
oroalimentary adjective: Relating to the mouth and to digestion
oroanal adjective: Involving the mouth and anus.
oroantral adjective: Relating to the oral and antral cavities.
oroarctic adjective: Relating to mountains in Arctic regions.
orobanchaceous adjective: Belonging to the family Orobanchaceae, plants mostly parasitic on the roots of other plants.
orobanchol noun: A strigolactone that acts as a germination stimulant
orobanchyl noun: The univalent radical derived from orobanchol
oroblanco noun /ˌɔːɹoʊˈblɑːŋkoʊ/: A hybrid fruit developed by crossing a pomelo and a white grapefruit. When fully developed, it is approximately the size of a grapefruit.
orobol noun: An isoflavone, found in Aspergillus niger and Streptomyces neyagawaensis, that is a potent inhibitor of phosphoinositide 3-kinase.
orobranchial adjective: Relating to the mouth and the gills
orobuccal adjective: Relating to the mouth and the cheek
orocephalic adjective: Relating to the mouth and the head
orocervical adjective: Relating to the mouth and the neck
Oroch noun /ɔːɹɔt͡ʃ/: A member of an ethnic group inhabiting the southern part of Khabarovsk Krai in Far Eastern Russia.
oroclinal adjective: Relating to an orocline.
orocline noun: A mountain belt whose process of deformation is visible.
orocutaneous adjective: Relating to both the mouth and skin, as for example (a) a rash or lesion affecting both the oral mucosa and the perioral skin or (b) a fistula connecting...
orodental adjective: Relating to the mouth and the teeth
orodigestive adjective: Relating to the mouth and the digestive tract.
orodigitofacial adjective: Alternative form of orofaciodigital.
orodispersable adjective: Alternative form of orodispersible.
orodispersible adjective: Describing a tablet designed to disintegrate in the mouth
orodontid noun: Any extinct cartilaginous fish in the family Orodontidae.
orodromine noun: Any dinosaur in the family Orodromeus, believed to be a synonym of the Parksosauridae or the Hypsilophodontidae.
oroduodenal adjective: Relating to, or connecting the mouth and the duodenum
orodynia noun: glossodynia
oroesophageal adjective: Of or relating to the mouth and the esophagus.
orofacial adjective: Of or affecting both the mouth and face.
orofaciodigital adjective: Affecting the mouth, face, and digits.
orofaecal adjective: Alternative form of orofecal.
orofaecally adverb: Alternative form of orofecally.
orofecal adjective: transmitted from feces to the mouth.
orofecally adverb: By the orofecal route.
Orofino proper noun: A city, the county seat of Clearwater County, Idaho, United States.
orogastric adjective: Of or pertaining to the mouth and the stomach; usually with reference to an enteral feeding tube passing through the mouth and into the stomach.
orogastrically adverb: By means of, or with reference to the mouth and the stomach
orogastroduodenal adjective: Relating to the mouth, stomach and duodenum
orogastrointestinal adjective: Relating to the mouth, stomach and intestines.
orogen noun: Rock deformed by orogeny; a belt of such rock(s).
orogenesis noun: The process of mountain formation by deformation of the Earth's crust.
orogenetic adjective: Relating to orogenesis.
orogenic adjective /ɒɹə(ʊ)ˈdʒɛnɪk/: Concerned with orogeny; pertaining to the creation of mountains.
orogenic belt noun: A zone of the Earth's crust affected by orogeny.
orogenically adverb: In terms of, or by means of, orogeny.
orogenital adjective: Involving the mouth and the genitals.
orogenous adjective: Of or relating to mountain-building; orogenic.
orogenous zone noun: A region characterized by mountain-building.
orogeny noun /ɒˈɹɒdʒɪni/: The process of mountain building by the upward folding of the Earth's crust.
orograph noun: A machine for use in making topographical maps, operated by being pushed across country, and recording distances and elevations.
orographer noun: A specialist in orography.
orographic adjective: Of or pertaining to the physical features of mountains, or to orography.
orographical adjective: Alternative form of orographic.
orographically adverb: In terms of or by means of orography.
orography noun /ɒˈɹɒɡɹəfi/: The scientific study, or a physical description of mountains.
oroheliograph noun: A camera for obtaining a circular panoramic view of the horizon. The photographic plate is placed horizontally with a vertical lens above. A...
orohypopharyngeal adjective: Relating to the orohypopharynx
orohypopharynx noun: The mouth and hypopharynx treated as a unit
oroide noun /ˈoʊɹəˌwaɪd/: An alloy of copper and zinc or tin that has a gold color, used in making inexpensive jewelry.
oroidin noun: Any of a family of alkaloids derived from marine sponges
Orok noun: A member of an ethnic group that lives in the Sakhalin
Orokaiva noun: An indigenous group of people in Oro Province, Papua New Guinea.
orolabial adjective: Relating to the mouth and lips.
orolaryngeal adjective: Relating to the mouth and the larynx
orolarynx noun: The oral part of the larynx
orolingual adjective: Relating to the mouth and tongue.
orological adjective: Of or pertaining to orology.
orologically adverb: In terms of orology.
orologist noun: an expert in orology.
orology noun: The study or science of mountains and their formation.
oromandibular adjective: Relating to the mouth and mandible.
oromanual adjective: Relating to the mouth and the hands
oromaxillary adjective: Relating to the mouth and the maxilla.
oromaxillofacial adjective: Relating to the mouth, jaw, and face.
oromediterranean adjective: Relating to mountainous parts of the Mediterranean region
oromerycid noun: Any member of the family †Oromerycidae, extinct relatives of camels.
orometer noun: An aneroid barometer having a second scale that gives the approximate elevation above sea level of the place where the observation is made.
orometric adjective, noun: Pertaining to orometry. Pertaining to measuring mountains.
orometrics noun: The discipline of orometry, the statistics of measuring the physical features of mountains.
orometry noun: The measurement of mountains.
Oromia proper noun: The largest and most populous region in Ethiopia, covering an area of approximately 353,006 square kilometers.

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.