omnilegent
adj. - reading or having read everything; having encyclopedic curiosity and knowledge
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omodynia
n. - pain in shoulder.
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omophagy, omophagia
n. - eating of raw flesh. omophagic, omophagous, adj.
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omoplate
n. - shoulder blade.
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omphalomancy
n. - predicting the number of children a mother will bear by counting the knots in her first-born's umbilical cord
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omphalos
n. - (pl. -li) navel; central point. omphaloskepsis, n. meditation while gazing at one's navel. omphalic, adj. omphaloid, adj. like a navel.
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omphaloskepsis
n. - contemplation of the navel for the purpose of obtaining philosophic calm
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onager
n. - (pl. -gri ) wild ass of Asia. onagraceous, adj. belonging to evening primrose family of plants.
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onanism
n. - masturbation. onanist, n. onanistic, adj.
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ondatra
n. - musk-rat.
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ondograph
n. - instrument measuring variations in wave formation of electric current. ondogram, n. record of ondograph ondoscope, n. instrument showing such wave form.
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ondoyant
adj. - wavy.
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oneirataxia
n. - inability to distinguish between fantasy and reality
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oneiric
adj. - having to do with dreams
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oneirocritic
n. - someone who interprets dreams
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oniochalasia
n. - buying as a means of mental relaxation
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oniomania
n. - mania for making purchases. oniomaniac, n.
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onomancy
n. - divination from letters of a name.
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onomasiology
n. - branch of semantics dealing with related words and their meanings.
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onomastic
adj. - pertaining to or consisting of names; applied to autograph signature in one hand on document written in another. onomastics n. pl. study of proper names. onomasticon n. vocabulary of proper names. onomatology, n. science of names. onomatomania, n. irresistible desire to repeat certain words continually, especially words of something to be remembered.
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onomatomania
n. - preoccupation with words and names
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onomatophobia
n. - fear of hearing a certain word
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onomatopoeia
n. - the forming of or use of a word that imitates in sound what it denotes; use of imitative or echoic words
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ontogeny, ontogenesis
n. - life history of individual organism. ontogenetic, ontogenic, adj.
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onus probandi
phr. - the burden of proof
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onychia, onychitis
n. - inflammation of root or side of nail. onychauxis, n. hypertrophy of nails. onychoid a. fingernail-like. onychophagia, n. nail-biting. onychosis, n. disease of nail.
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onyxis
n. - ingrowing nail.
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oogamete
n. - female gamete. oogenesis, n. egg-formation. oogamous, adj. heterogamous.
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ooid(al)
adj. - egg-shaped.
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oolite
n. - limestone comprising small egg-like grains. oolitic, adj.
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oology
n. - collection and study of birds' eggs. oologic(al), adj. oologize, v.i. search for birds' eggs. oologist, n.
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oometer
n. - egg-measuring instrument.
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ooscope
n. - instrument for examining interior of egg.
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oosperm
n. - fertilized egg. oospore, n. spore arising from fertilized egg cell.
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ootheca
n. - firm-walled egg-case of some molluscs and insects.
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opeidoscope
n. - instrument showing sound vibrations by vibrating mirror.
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operculum
n. - (pl. -s or -la) lid-like organ, as of moss capsule and mollusc shell; fish's gill cover. opercular, adj. operculate, adj.
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operon
n. - group of genes operating as a unit.
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operose
adj. - requiring effort; working hard.
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ophelimity
n. - the ability to please (sexually)
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ophiasis
n. - baldness in wavy bands.
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ophic
adj. - pertaining to serpents. ophism, n. snake-worship.
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ophicleide
n. - bass bugle-like keyed brass musical instrument. ophicleidean, adj. ophicleidist, n.
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ophidian
adj.,n. - (reptile) belonging to order of reptiles including snakes; like snakes. ophidioid, adj. snake-like. ophiolog ,n. study of snakes. ophiomorphic, adj. snake-shaped.
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ophthalmia
n. - inflammation of eye. ophthalmic, adj. pertaining to eye. ophthalmology, n. study of eye and its diseases. ophthalmometer, n. instrument for measuring eye, especially for astigmatism. ophthalmoplegia, n. paralysis of ocular muscles. ophthalmoscope n. instrument for examining inner eye.
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ophthalmophobia
n. - fear of being stared at
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opiparous
adj. - sumptuous
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opisometer
n. - instrument measuring curved lines.
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opisthenar
n. - back of hand. opisthognathous, adj. with receding jaws. opisthograph, n. ancient tablet or manuscript bearing writing on both sides. opisthosomal, adj. pertaining to posteriors.
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opopanax
n. - aromatic gum resin formerly used in medicine; now used in perfume and some incenses.
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oppidan
adj. - pertaining to town; n. town-dweller; student at Eton boarding in the town.
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oppilate
v. - Medicine, stop up. oppilation, n. oppilative, adj.
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oppilations
n. - obstructions
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oppugn
v. - call in question; deny; resist; conflict with. oppugnant, adj. hostile, combative.
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oppugnant
adj. - opposing; antagonistic; contrary
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opsablepria
n. - inability to look someone in the eye
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opsablepsia
n. - not looking into another's eyes
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opsimath
n. - mature student; late learner.
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opsonin
n. - substance of blood serum making bacteria vulnerable to phagocytic action.
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optative
adj. - Grammar, (mood) expressing wish.
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optogram
n. - image fixed on retina. optometry, n. measuring range of vision; eye-testing. optophone, n. instrument enabling blind to read by transforming light into sound. optotypes, n. pl. varying-sized print for eye-testing.
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opuscule
n. - a minor composition or work
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orache
n. - plant of the goosefoot family, especially one grown as a vegetable.
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oracular
adj. - like an oracle; sententious; prophetic; ambiguous.
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orant
n. - representation of a praying figure.
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orarian
adj.,n. - (dweller) of the seashore.
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oratio obliqua
phr. - indirect speech: reported speech, or relatingby another that is modified and indirect
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oratio recta
phr. - straight speech: actual or direct speech
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orbicular
adj. - spherical; circular. orbiculate, adj. orbiculation, n.
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orbific
adj. - world-creating.
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orchesis
n. - art of dancing in Greek chorus.
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orchidaceous
adj. - pertaining to or like an orchid; exceptionally beautiful; ostentatious; gaudy.
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orchidectomy
n. - castration
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orchitis
n. - inflammation of testicles. orchidectomy, n. removal of testicle(s).
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ore rotundo
phr. - with a round mouth: eloquently, with considered emphasis
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oread
n. - mountain nymph.
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orectic
adj. - pertaining to desires and their satisfaction. orexis, n. mental desire; effort.
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orfe
n. - small yellow fish kept in aquariums.
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organum, organon
n. - logical system or method for investigating phenomena.
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orgulous
adj. - proud and haughty; swelling
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oriel
n. - projecting window or part of building containing window.
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oriflamme
n. - royal red banner; battle standard.
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oriform
adj. - mouth-shaped.
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orismology
n. - the science of defining or explaining technical terms
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orison
n. - short prayer
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orlop
n. - ship's lowest deck.
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ormolu
n. - type of brass that looks like gold
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ornis
n. - avifauna.
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orobathymetric
adj. - pertaining to map showing sea depths or submerged heights.
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orogeny, orogenesis
n. - formation of mountains. orogenic, adj.
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orograph
n. - machine recording heights and distances traversed. orographic, adj. showing heights. orography, n. study of mountains.
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orology
n. - study of mountains. orometer, n. barometer showing height above sea-level.
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orotund
adj. - using high-flown language; speaking or singing clearly and strongly. orotundity, n.
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orphic
adj. - mystic, oracular; pertaining to Orpheus.
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orphrey
n. - gold-embroidered band on ecclesiastical robes.
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orpiment
n. - yellow compound of arsenic, used as pigment, etc.
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orpine
n. - kind of stone-crop; British, livelong; American, live-forever.
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orrery
n. - moving model of solar system.
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orris
n. - kind of iris, and its rootstock used in perfumery, medicine, etc.
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orthodromy, orthodromics
n. - navigation by great circle.
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orthoepy
n. - correct pronunciation; study of pronunciation. orthoepic, adj. orthoepist, n.
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orthogenesis
n. - (belief that) biological variation results in new species, always along same path; belief that the development of civilization always proceeds in same way. orthogenetic, adj. orthogenic, adj. pertaining to correction of children's mental defects.
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orthognathism
n. - state of having straight jaws. orthognathous, adj. orthognathy, adj.
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orthograde
adj. - walking with the body upright.
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orthometopic
adj. - having vertical forehead.
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orthopnoea
n. - ability to breathe in upright position only.
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orthopraxy
n. - correct action.
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orthopsychiatry
n. - preventive psychiatry for young people.
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orthopterous
adj. - pertaining or belonging to insect order including grasshoppers, crickets, etc. orthopteran, n. & a. orthopterist, n. student of insects. orthopteron, n. such insect.
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orthoptic
adj. - pertaining to correct vision.
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orthosis
n. - correction of neurotic state.
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orthostatic
adj. - pertaining to erect or standing position. orthotic, adj.
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orthotonus
n. - spasmic bodily rigidity due to tetanus.
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orthotropism
n. - vertical growth. orthotropic, adj.
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ortolan
n. - kind of bunting (bird) esteemed as food.
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orts
n. - Archaic, crumbs, scraps.
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oryctognosy
n. - mineralogy. oryctognostic(al), adj. oryctology, n. mineralogy.
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oryzivorous
adj. - rice-eating.
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os
n. - (pl. ossa ) bone; (pl. ora ) mouth.
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oscillometer
n. - instrument measuring ship's rollings, etc.; instrument measuring blood pressure variations. oscillometric, adj.
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oscine
adj. - (bird) belonging to sub-order of birds including singing birds.
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oscitance, oscitancy
n. - yawning; sleepiness; dullness. oscitant, adj. oscitation, n.
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osculate
v. -i. make contact; coincide; jocular, kiss. osculant, osculatory, oscular, adj. pertaining to mouth or kissing. osculation n.
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osmatic
adj. - relying on smell for orientation. osmesis, n. act of smelling. osmics, n. study of sense of smell. osmidrosis, n. secretion of strong- smelling perspiration.
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osophy
n. - belief or doctrine; ism.
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osphresis
n. - sense of smell. osphretic, adj.
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osseous
adj. - bony. ossicle, n. small bone, especially of ear.
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ossifrage
n. - lammergeier; osprey.
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ossuary
n. - charnel-house.
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osteal
adj. - pertaining to or like bone. osteitis, n. inflammation of bone. ostosis, n. bone formation.
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ostiary
n. - door-keeper, especially of church.
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ostinato
n. - recurring musical phrase.
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ostiole
n. - small orifice, pore.
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ostreiform
adj. - oyster-shaped or -like. ostreiculture, n. oyster-breeding. ostreoid, adj. oyster-like. ostreophagous, adj. oyster-eating.
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otacoustic
adj.,n. - (instrument) aiding hearing.
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otalgia
n. - earache. otalgic, n. & a. (curative) of earache.
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otiant
adj. - idle; resting.
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otic
adj. - pertaining to the ear. otitis, n. inflammation of the ear. otolith, n. concretion or "stone' of ear. otology, n. study of ear and its diseases. otorhinolaryngology, otolaryngology, n. study of ear, nose and throat. otoscope, n. instrument for examining ear. otosclerosis, n. growth of new bone in inner ear, leading to deafness. otosis, n. mishearing of speech.
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otiose
adj. - futile, functionless, sterile, idle
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oubliette
n. - dungeon with entrance in roof.
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outrecuidance
n. - egomania; gross conceit
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outrooper
n. - an auctioneer
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overweening
adj. - arrogantly excessive.
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ovicide
n. - substance killing eggs, especially of insects. ovicidal, adj.
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oviduct
n. - passage conveying eggs to exterior or place of fertilization; Fallopian tube. oviductal, oviducal, adj.
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ovine
adj. - pertaining to or like sheep; n. such animal. oviform, adj. sheep- or egg-like.
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oviparous
adj. - producing offspring in eggs. ovipositor, n. insect's tube-like organ for depositing eggs. oviparity, n.
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ovopyriform
adj. - between pear-shaped and egg-shaped.
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ovoviviparous
adj. - producing offspring in eggs that hatch within parent's body. ovoviviparity, n.
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oxalidaceous
adj. - pertaining to or like wood sorrel (plant); belonging to wood sorrel family of plants. oxalic, adj. of or from wood sorrel; oxalic acid, poisonous acid used in dyeing, etc.
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oxhoft
n. - measurement of approximately 57 gallons
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oxyacanthous
adj. - with sharp thorns. oxyaesthesia, n. extreme acuteness of sensation. oxyaphia, n. sensitivity of touch sense. oxyblepsia, n. keen-sightedness. oxygeusia, n. extreme sensitivity of taste sense.
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oxyopia
n. - abnormal keen-sightedness. oxyosphresia, n. extreme sensitivity of smell sense. oxyphonia, n. shrillness of voice. oxyrhinch, adj. sharp- nosed. oxytocia, n. quickness of child-birth. oxytocic, adj. hastening childbirth.
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oxythymous
adj. - quick-tempered; easily riled
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oxytone
adj. - in ancient Greek, bearing acute accent on last syllable; n. such word.
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ozocerite
n. - kind of waxy mineral.
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ozostomia
n. - foul-smelling breath.
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