OlympianOf or relating to Mount Olympus, the highest mountain in Greece; or (Greek mythology) the Greek gods and goddesses who were believed to live there.
OlympianesqueCharacteristic of the Olympic Games or Olympians.
OlympianismSynonym of Hellenism (the modern-day revival of the polytheistic religious system of Ancient Greece).
omacetaxineA protein translation inhibitor drug for the management of treatment-resistant chronic myeloid leukemia and under investigation for some other hematologic cancers.
OmadaleA locality in the Upper Hunter council area, eastern New South Wales, Australia.
omadhaunA fool or simpleton; someone out of their senses.
omapatrilatAn antihypertensive agent that inhibits both neutral endopeptidase and angiotensin converting enzyme.
omarA glacial erratic piece of (typically smooth) dark siliceous greywacke that exhibits a hemispherical pit or hole (as a result of selective dissolution of carbonate concretions within the greywacke), originating in the Omarolluk Formation and carried by glaciers throughout Canada and the United States.
OmaramaA town in Waitaki district, Canterbury, South Island, New Zealand.
OmarianIn the style of the Persian poet Omar Khayyam, especially the Edward Fitzgerald translation of Omar Khayyam's quatrains, The Rubáiyát of Omar Khayyám: The Astronomer-Poet of Persia (1859).
omataA kimarite in which the attacker grabs his opponent's leg from the inside and lifts it up and backwards, driving his body into that of the defender, forcing him over onto his back. A thigh scooping body drop.
omatoA Japanese archery target for long-distance shooting.
OmbersleyA village and civil parish (served by Ombersley and Doverdale Parish Council) in Wychavon district, Worcestershire, England (OS grid ref SO8463).
ombudsombudsman (as an abbreviated or gender-neutral title, or in apposition, as in "ombuds office").
ombudsmanAn appointed official whose duty is to investigate complaints, generally on behalf of individuals such as consumers or taxpayers, against institutions such as companies and government departments.
OmdurmanThe largest city in Sudan. Part of the capital, Khartoum.
omeThe totality of a certain type of biological entity in an organism etc., e.g. the genome or proteome.
omegaThe twenty-fourth letter of the Classical and the Modern Greek alphabet, and the twenty-eighth letter of the Old and the Ancient Greek alphabet, i.e. the last letter of every Greek alphabet. Uppercase version: Ω; lowercase: ω.
omegaballA variant of soccer (“association football”), played on a round pitch with more than two teams, and associated goals.
OmegapauseThe second extended hiatus of Homestuck, lasting from July 28, 2015 to March 28, 2016.
omegasomeA cup-shaped protrusion from the endoplasmic reticulum that serves as a platform for autophagosome biogenesis in mammalian cells.
omegathIn the position known as omega (a transfinite ordinal number referring to the next position after ordering a countably infinite set).
omegatronA kind of mass spectrometer using the principles of cyclotron acceleration.
omegaverseA subgenre of erotic speculative fiction set in this fictional universe.
omeggidAn AMAB individual who fulfills a third gender role in Kuna society.
omegoidHaving the form of the Greek capital letter omega, Ω.
omeiiteAn orthorhombic-dipyramidal steel gray mineral containing arsenic, osmium, and ruthenium.
omeletteA dish made with beaten eggs cooked in a frying pan without stirring, flipped over to cook on both sides, and sometimes filled or topped with other foodstuffs, for example cheese or chives.
omenSomething which portends or is perceived to portend either a good or evil event or circumstance in the future, or which causes a foreboding; a portent or augury.
omenaIn Kenya, small fish dried and milled into flour.
omentopexyThe operation of suturing the omentum to the abdominal wall, securing anastomotic communication between the portal system and that of the vena cava.
omeprazoleA substituted benzimidazole (trademark Losec, Prilosec) which is a proton pump inhibitor and inhibits secretion of gastric acid, being given orally in the treatment of ulcers and gastroesophageal reflux; 5-methoxy-2-(4-methoxy-3,5-dimethyl-2-pyridylmethylsulfinyl)benzimidazole, C₁₇H₁₉N₃O₃S.
omerA former small Hebrew unit of dry volume equal to about 2.3 L or 2.1 quarts.