Glossary · MWE Terms · O
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TermTypeDefinitionClassificationsUpdated
Oil of WintergreennounMWEoil or flavoring obtained from the creeping wintergreen or teaberry plantverified
Oil PalmnounMWEpinnate-leaved palms of the genus Elaeis having dense clusters of crowded flowers and bright red fruit and yielding high quality palm oilsverified
Oil PressurenounMWEpressure that keeps oil on the moving parts of an internal-combustion engineverified
Oil ProductionnounMWEthe act of drilling a hole in the earth in the hope of producing petroleumverified
Oil SlicknounMWEa thin film of oil floating on top of water (especially crude oil spilled from a ship)verified
Oil-Water InterfacenounMWEan interface forming the boundary between the non-miscible liquids oil and waterverified
Okra PlantnounMWEtall coarse annual of Old World tropics widely cultivated in southern United States and West Indies for its long mucilaginous green pods used as basis for soups and stewsverified
Old Boy NetworknounMWEan exclusive informal network linking members of a social class or profession or organization in order to provide connections and information and favors, especially in business or politicsverified
Old FashionednounMWEstate of being out of touch with contemporary times, especially with regard to social mores and fashionverified
Old GrowthnounMWEforest or woodland having a mature or overly mature ecosystem more or less uninfluenced by human activityverified
Old MaidnounMWEany of various plants of the genus Zinnia cultivated for their variously and brightly colored flower headsverified
Old Maid FlowernounMWEany of various plants of the genus Zinnia cultivated for their variously and brightly colored flower headsverified
Old MannounMWEaromatic herb of temperate Eurasia and North Africa having a bitter taste used in making the liqueur absintheverified
Old Man's BeardnounMWEvigorous deciduous climber of Europe to Afghanistan and Lebanon having panicles of fragrant green-white flowers in summer and autumnverified
Old StylenounMWEa typeface (based on an 18th century design) distinguished by irregularity and slanted ascender serifs and little contrast between light and heavy strokesverified
Old Style FontnounMWEa typeface (based on an 18th century design) distinguished by irregularity and slanted ascender serifs and little contrast between light and heavy strokesverified
Old-Maid's BonnetnounMWEstout perennial of eastern and central North America having palmate leaves and showy racemose blue flowersverified
Olecranon ProcessnounMWEprocess of the ulna that forms the outer bump of the elbow and fits into the fossa of the humerus when the arm is extendedverified
Olfactory BrainnounMWEa center in the cerebral hemispheres that governs the sense of smell in lower animalsverified
Olfactory BulbnounMWEone of two enlargements at the terminus of the olfactory nerve at the base of the brain just above the nasal cavitiesverified
Olfactory NervenounMWEa collective term for numerous olfactory filaments in the nasal mucosaverified
Olfactory PerceptionnounMWEthe sensation that results when olfactory receptors in the nose are stimulated by particular chemicals in gaseous formverified
Olfactory SensationnounMWEthe sensation that results when olfactory receptors in the nose are stimulated by particular chemicals in gaseous formverified
Oligochaete WormnounMWEhermaphroditic terrestrial and aquatic annelids having bristles borne singly along the length of the bodyverified
Olive RidleynounMWEolive-colored sea turtle of tropical Pacific and Indian and the southern Atlantic oceansverified
Olympic SalamandernounMWEsmall large-eyed semiaquatic salamander of the United States Northwestverified
Omega-3 Fatty AcidnounMWEa polyunsaturated fatty acid whose carbon chain has its first double valence bond three carbons from the beginningverified
Omega-6 Fatty AcidnounMWEa polyunsaturated fatty acid whose carbon chain has its first double valence bond six carbons from the beginningverified
Omnidirectional AntennanounMWEan antenna that sends or receives signals equally in all directionsverified
Omnidirectional Radio RangenounMWEa navigational system consisting of a network of radio beacons that provide aircraft with information about exact position and bearingverified
Omnidirectional RangenounMWEa navigational system consisting of a network of radio beacons that provide aircraft with information about exact position and bearingverified