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All 40 Matching Words

obelism(rare) The practice of annotating manuscripts with marks set in the margins.oblatum(geometry) An oblate spheroid; a figure described by the revolution of an ellipse about its minor axis.oculismophthalmology; optometryodalism(historical) A system of heritable freehold property rights to odal land.odylism(pseudoscience, historical) A belief in a vital force known as od or odyle.oeconymUncommon spelling of oikonym.oestrum(figurative, now rare) Something that stings or incites one to frenzy or action; an impulse or passion.ogreism(archaic) The character or manners of an ogre.oikonymA type of toponym denoting a settlement or its part.oilpalmAlternative form of oil palm.oleicum(obsolete, organic chemistry) oleic acid, (an organic acid prepared from fatals, appearing as a yellowish liquid), used to form oleatesomentum(anatomy) Either of two folds of the peritoneum that support the viscera.onanismMasturbation.ooeciumAn ovicell of a bryozoan.ooplasmThe cytoplasm of an egg or ovumoosperm(biology) The ovum, after fusion with the spermatozoon in impregnation.ophanimplural of ophanopossumAny American marsupial of the family Didelphidae in the order Didelphimorphia.oppidumA large, defended Iron Age settlement associated with the Celtic La Tène culture.opposumMisspelling of opossum.optimumThe best or most favorable condition, or the greatest amount or degree possible under specific sets of comparable circumstances.oralismA philosophy of education for the deaf, opposed to manualism, that uses spoken language consisting of lipreading, speech, the process of watching mouth movements, and mastering breathing techniques.orarium(religion) A collection of private devotions.organum(music) A type of medieval polyphony which builds upon an existing plainsong.osculum(chiefly zoology) A small opening or orifice.outbeam(transitive) To beam more brightly than; to outshine.outform(obsolete) external appearanceoutscam(informal, transitive) To surpass in scamming.outseamThe seam of a trouser up the outside of the leg.outswamsimple past of outswimoutswim(transitive) To swim faster, farther or better than.ovarium(archaic) An ovary.overarmThrowing while having the hand above the elbowovernim(transitive, archaic) To overtake; seize.overramThe incorrect seating of the charge of a firearm in this manner.oversumA whole that is more than the sum of its parts; superaddition.oxenium(obsolete, chemistry) oxyliumoxonium(inorganic chemistry) Any univalent oxygen cation derived from water, the simplest of which is the hydronium ion (H₃O⁺).oxylium(chemistry) Any cation such as H-O⁺ or R-O⁺ozonium(mycology) A carpet of hyphae, resembling an above-ground mycelium, associated with certain mushrooms of the genus Coprinellus.