Showing 4,801 to 4,900 of 7,893.
- OCCUPANTA person who occupies an office or a position.
- OCELLATEDOf, pertaining to, resembling or having an ocellus.
- OCELLUSA simple eye consisting of a single lens and a small number of sensory cells.
- OCHREAAlternative form of ocrea.
- OCREAA sheath around a plant stem forming from the stipule of a leaf and extending above the point of insertion of the leaf.
- OCTANGULAROctagonal, with eight angles.
- OCTANTThe eighth part of a circle; an arc of 45 degrees.
- OCTAVEAn interval of twelve semitones spanning eight degrees of the diatonic scale, representing a doubling or halving in pitch frequency.
- OCTAVOA sheet of paper 7 to 10 inches (= 17.78 to 25.4 cm) high and 4.5 to 6 inches (= 11.43 to 15.24 cm) wide, the size varying with the large original sheet used to create it. It is ma
- OCTOFIDCleft or separated into eight segments.
- OCTONARYOf eighth rank or order.
- OCTOPIplural of octopus
- OCTROIA privilege granted by the sovereign authority, such as the exclusive right of trade granted to a guild or society; a concession.
- OCULAROf, or relating to the eye, or the sense of sight
- OCULATEHaving a good sight, sharp-eyed.
- OCULISTAn eye doctor; an ophthalmologist or optometrist.
- OCULUSA window or other opening that has an oval or circular shape (as of an eye). The central boss of a volute. An opening at the apex of a dome.
- ODEUMAlternative form of odeon.
- ODIOUSArousing or meriting strong dislike, aversion, or intense displeasure.
- ODORAny smell, whether fragrant or offensive.
- OENOMELA beverage made of wine and honey.
- OENOMELSA beverage made of wine and honey.
- OESTRUMA biting insect; a gadfly or botfly.
- OFAYA white person.
- OFFERA proposal that has been made.
- OFFICEROne who has a position of authority in a hierarchical organization, especially in military, police or government organizations.
- OFFICIANTA person who officiates at a religious ceremony (in Christianity, at any ceremony other than the Eucharist).
- OFFICINALMedicinal.
- OFFICIOUSObliging, attentive, eager to please.
- OINTTo anoint.
- OLEAGINOUSOily, greasy.
- OLEANDERNerium oleander, a notoriously poisonous shrub in the dogbane family, Apocynaceae, but nonetheless widely grown as an ornamental, having leathery lance-shaped leaves and deep rose-
- OLEICOf or pertaining to oil, especially to vegetable oil.
- OLEIFEROUSThat produces oil
- OLENTscented
- OLERACEOUSRelating to potherbs.
- OLFACTTo smell.
- OLFACTIONThe sense of smell; the detection of airborne molecules.
- OLFACTORYConcerning the sense of smell.
- OLIDevil-smelling; fetid.
- OLIGURIAA decreased production in the volume of urine.
- OLIOA rich, thick, Spanish stew consisting of meat and vegetables.
- OLIVARYShaped like an olive
- OMBREA Spanish card game, usually played by three people. It involves forty cards, omitting the ranks of 8, 9 and 10.
- 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.
- OMICRONThe 15th letter of the Classical and Modern Greek alphabets (16th in Ancient and Old Greek), used in ordering lists as in naming the 15th star of a constellation or the 15th discov
- OMINOUSOf or pertaining to an omen or to omens; being or exhibiting an omen; significant.
- OMISSIONThe act of omitting.
- OMITTo leave out or exclude.
- OMNIBUSA bus (vehicle for transporting large numbers of people along roads).
- OMNIFARIOUSOf many or all forms, varieties, or kinds.
- OMNIFEROUSThat bears everything; producing all types.
- OMNIFICCapable of making or doing anything; all-creating.
- OMNIVOREAn animal which is able to consume both plants (like a herbivore) and meat (like a carnivore).
- ONEROUSImposing or constituting a physical, mental, or figurative load which can be borne only with effort; burdensome.
- ONUSA legal obligation.
- ONYCHAthe operculum of kinds of strombus or muricid, smoked as an ingredient in the Mosaic incense and pre-modern medicine
- ONYCHASthe operculum of kinds of strombus or muricid, smoked as an ingredient in the Mosaic incense and pre-modern medicine
- ONYCHIAAn infection of the nailbed, which more or less always also involves the nail itself (sometimes causing the nail to slough off).
- ONYCHIUMA little claw or clawlike appendage, present on some arthropods.
- ONYCHIUMSA little claw or clawlike appendage, present on some arthropods.
- OPACIFYTo make opaque.
- OPACITYThe state or quality of being opaque, not allowing light to pass through.
- OPACOUSNot shining or illuminated; dark.
- OPERANDA quantity to which an operator is applied (in 3−x, the operands of the subtraction operator are 3 and x).
- OPERANTThat operates to produce an effect.
- OPERATETo perform a work or labour; to exert power or strength, physical or mechanical; to act.
- OPERATIONThe method by which a device performs its function.
- OPERATIVEEffectual or important.
- OPERCULATEHaving an operculum.
- OPERCULUMA covering flap in animals and insects, such as a gill cover or the lid of nits.
- OPEROSEOf a person: busy, industrious, or painstaking.
- OPIATERelating to, resembling, or containing opium.
- OPIFICERA person who creates or makes something.
- OPINABLECapable of being opined or thought.
- OPINETo express an opinion; to state as an opinion; to suppose, consider (that).
- OPPIDANOf or pertaining to a town or conurbation.
- OPPIGNERATEAlternative form of oppignorate. [with 1622-1857]
- OPPILATETo block, to stop up, to obstruct.
- OPPORTUNESuitable for some particular purpose.
- OPPUGNTo contradict or controvert; to oppose; to challenge or question the truth or validity of a given statement.
- OPTIMALThe best, most favourable or desirable, especially under some restriction.
- OPTIMATEA member of the patrician ruling class in republican Ancient Rome; an aristocrat, a noble.
- OPTIMEA student who graduates with second class ("senior optime") or third class ("junior optime") honours in mathematics, or (loosely) in any other subject.
- OPTIONOne of a set of choices that can be made.
- OPULENCEWealth.
- OPUSA work of music or set of works with a specified rank in an ordering of a composer's complete published works.
- OPUSCULEA small or petty work.
- ORACLEA shrine dedicated to some prophetic deity.
- ORACULOUSOracular.
- ORALRelating to the mouth.
- ORANTAlternative form of orans.
- ORATETo speak formally; to give a speech.
- ORATIONA formal, often ceremonial speech.
- ORATORYA private chapel or prayer room.
- ORBICULARCircular or spherical in shape; round.
- ORBICULARISA muscle surrounding an opening.
- ORBICULATEspherical or circular; orbicular
- ORBITThe curved path of one object around a point or another body. An elliptical movement of an object about a celestial object or Lagrange point, especially a periodic elliptical revol
- ORBITAObsolete form of orbit.