| OA | Osteo-Arthritis = DJD |
|---|---|
| OA | obstructive apnea; occipital artery; occipito-anterior; occiput anterior; octanoic acid; ocular albinism; [o]esophageal atresia; old age; oleic acid; opiate analgesia; opsonic activity; optic atrophy; oral alimentation; orotic acid; osteoarthritis; osteoarthrosis; ovalbumin; overall assessment; Overeaters Anonymous; oxalic acid |
| OA/BVM | oral airway/bag-valve-mask |
| OAA | Old Age Assistance; Older Americans Act; Opticians Association of America; oxaloacetic acid |
| OAAD | ovarian ascorbic acid depletion |
| OAB | ABO blood group; old age benefits |
| OABP | organic anion binding protein |
| OAD | obstructive airway disease; organic anionic dye |
| OADC | oleate-albumin-dextrose-catalase [medium] |
| OAE | otoacoustic emission |
| OA | Obstructive apneas |
|---|---|
| OA | Ocadaic acid |
| OA | Occupational Asthma |
| OA | Ochratoxin A |
| OA | Octopamine |
| OA | Oesophageal atresia |
| OA | Oleanolic acid |
| OA | Oleic Acid |
| OA | Ophthalmic Artery |
| OA | Oral anticoagulants |
| oafish | Like an oaf; simple. Oaf"ishness. Source: Websters Dictionary (01 Mar 1998) |
|---|---|
| oak | 1. <botany> Any tree or shrub of the genus Quercus. The oaks have alternate leaves, often variously lobed, and staminate flowers in catkins. The fruit is a smooth nut, called an acorn, which is more or less inclosed in a scaly involucre called the cup or cupule. There are now recognised about three hundred species, of which nearly fifty occur in the United States, the rest in Europe, Asia, and the other parts of North America, a very few barely reaching the northern parts of South America and Africa. Many of the oaks form forest trees of grand proportions and live many centuries. The wood is usually hard and tough, and provided with conspicuous medullary rays, forming the silver grain. 2. The strong wood or timber of the oak. Among the true oaks in America are: Barren oak, or Black-jack, Q. Nigra. Basket oak, Q. Michauxii. Black oak, Q. Tinctoria: called also yellow or quercitron oak. Bur oak (see under Bur), Q. Macrocarpa; called also over-cup or mossy-cup oak. Chestnut oak, Q. Prinus and Q. Densiflora. Chinquapin oak (see under Chinquapin), Q. Prinoides. Coast live oak, Q. Agrifolia, of California; also called enceno. Live oak (see under Live), Q. Virens, the best of all for shipbuilding; also, Q. Chrysolepis, of California. Pin oak. Same as Swamp oak. Post oak, Q. Obtusifolia. Red oak, Q. Rubra. Scarlet oak, Q. Coccinea. Scrub oak, Q. Ilicifolia, Q. Undulata, etc. Shingle oak, Q. Imbricaria. Spanish oak, Q. Falcata. Swamp Spanish oak, or Pin oak, Q. Palustris. Swamp white oak, Q. Bicolour. Water oak, Q. Aguatica. Water white oak, Q. Lyrata. Willow oak, Q. Phellos. Among the true oaks in Europe are: Bitter oak, or Turkey oak, Q. Cerris (see Cerris). Cork oak, Q. Suber. English white oak, Q. Robur. Evergreen oak, Holly oak, or Holm oak, Q. Ilex. Kermes oak, Q. Coccifera. Nutgall oak, Q. Infectoria. Among plants called oak, but not of the genus Quercus, are: African oak, a valuable timber tree (Oldfieldia Africana). Australian, or She, oak, any tree of the genus Casuarina (see Casuarina). Indian oak, the teak tree (see Teak). Jerusalem oak. See Jerusalem. New Zealand oak, a sapindaceous tree (Alectryon excelsum). Poison oak, the poison ivy. See Poison. Silky, or Silk-bark, oak, an Australian tree (Grevillea robusta). Green oak, oak wood coloured green by the growth of the mycelium of certain fungi. Oak apple, a large, smooth, round gall produced on the leaves of the American red oak by a gallfly (Cynips confluens). It is green and pulpy when young. <zoology> Oak beauty, a British geometrid moth (Biston prodromaria) whose larva feeds on the oak. Oak gall, a gall found on the oak. See Gall. <botany> Oak leather See Pruner, the insect. Oak spangle, a kind of gall produced on the oak by the insect Diplolepis lenticularis. Oak wart, a wartlike gall on the twigs of an oak. The Oaks, one of the three great annual English horse races (the Derby and St. Leger being the others). It was instituted in 1779 by the Earl of Derby, and so called from his estate. To sport one's oak, to be "not at home to visitors," signified by closing the outer (oaken) door of one's rooms. Origin: OE. Oke, ok, ak, AS. Ac; akin to D. Eik, G. Eiche, OHG. Eih, Icel. Eik, Sw. Ek, Dan. Eeg. Source: Websters Dictionary (01 Mar 1998) |
| oak apple | An excrescence on the oak, Quercus infectoria (family Fagaceae) and other species of Quercus, caused by the deposit of the ova of a fly, Cynips gallae tinctorae; an astringent and styptic, by virtue of the tannin it contains. Synonym: gall, galla, oak apple. (05 Mar 2000) |
| oaken | Made or consisting of oaks or of the wood of oaks. "In oaken bower." "Oaken timber, wherewith to build ships." (Bacon) Origin: AS. Acen. Source: Websters Dictionary (01 Mar 1998) |
| oar | 1. An implement for impelling a boat, being a slender piece of timber, usually ash or spruce, with a grip or handle at one end and a broad blade at the other. The part which rests in the rowlock is called the loom. An oar is a kind of long paddle, which swings about a kind of fulcrum, called a rowlock, fixed to the side of the boat. 2. An oarsman; a rower; as, he is a good car. 3. <zoology> An oarlike swimming organ of various invertebrates. Oar cock (Zool), the water rail. Spoon oar, an oar having the blade so curved as to afford a better hold upon the water in rowing. To boat the oars, to cease rowing, and lay the oars in the boat. To feather the oars. See Feather, To lie on the oars, to cease pulling, raising the oars out of water, but not boating them; to cease from work of any kind; to be idle; to rest. To muffle the oars, to put something round that part which rests in the rowlock, to prevent noise in rowing. To put in one's oar, to give aid or advice; commonly used of a person who obtrudes aid or counsel not invited. To ship the oars, to place them in the rowlocks. To toss the oars, To peak the oars, to lift them from the rowlocks and hold them perpendicularly, the handle resting on the bottom of the boat. To trail oars, to allow them to trail in the water alongside of the boat. To unship the oars, to take them out of the rowlocks. Origin: AS. Ar; akin to Icel. Ar, Dan. Aare, Sw. Ara; perh. Akin to E. Row, v. Cf. Rowlock. Source: Websters Dictionary (01 Mar 1998) |
| oared | 1. Furnished with oars; chiefly used in composition; as, a four-oared boat. 2. <ornithology> Having feet adapted for swimming. Totipalmate; said of the feet of certain birds. 3. <zoology> Oared shrew, an aquatic European shrew (Crossopus ciliatus). Synonym: black water shrew. Source: Websters Dictionary (01 Mar 1998) |
| oari- | Oario- An obsolete term for an ovary. See: oo-, oophor-, ovario-. Origin: G. Oarion, a small egg, dim. Of oon, egg (05 Mar 2000) |
| oasthouse urine disease | An inherited metabolic defect in the absorption of methionine which is converted by intestinal bacteria to alpha-hydroxybutyric acid; characterised by diarrhoea, tachypnea, and marked urinary excretion of alpha-hydroxybutyric acid (causing an odour like that of an oasthouse). Origin: oast, kiln for drying hops, malt, or tobacco (05 Mar 2000) |
| oat cell | A short, bluntly spindle-shaped cell that contains a relatively large, hyperchromatic nucleus, frequently observed in some forms of undifferentiated bronchogenic carcinoma. (05 Mar 2000) |
| oat cell cancer | A type of lung cancer in which the cells look like oats. Also called small cell lung cancer. (12 Dec 1998) |
| oat cell carcinoma | <tumour> An anaplastic, highly malignant, and usually bronchogenic carcinoma composed of small ovoid cells with very scanty cytoplasm; this carcinoma and small round cell carcinoma's comprise over one-third of carcinoma's of the lung. Synonym: small cell carcinoma. (05 Mar 2000) |
| oath | Origin: OE. Othe, oth, ath, AS. A; akin to D. Eed, OS. E, G. Eid, Icel. Eir, Sw. Ed, Dan. Eed, Goth. Ais; cf. OIr. Oeth. 1. A solemn affirmation or declaration, made with a reverent appeal to God for the truth of what is affirmed. "I have an oath in heaven" "An oath of secrecy for the concealing of those [inventions] which we think fit to keep secret." (Bacon) 2. A solemn affirmation, connected with a sacred object, or one regarded as sacred, as the temple, the altar, the blood of Abel, the Bible, the Koran, etc. 3. An appeal (in verification of a statement made) to a superior sanction, in such a form as exposes the party making the appeal to an indictment for perjury if the statement be false. 4. A careless and blasphemous use of the name of the divine Being, or anything divine or sacred, by way of appeal or as a profane exclamation or ejaculation; an expression of profane swearing. "A terrible oath" (01 Mar 1998) |
| oatmeal | 1. Meal made of oats. 2. <botany> A plant of the genus Panicum; panic grass. Source: Websters Dictionary (01 Mar 1998) |
| oatmeal-tomato paste agar | A special culture medium for the production of ascospore formation in the dermatophytes. (05 Mar 2000) |
| oats | A grass of the genus avena, especially a. Sativa, widely cultivated for its edible seeds and also the seeds of the oat, used as food and fodder. (12 Dec 1998) |
| oak |
the hard durable wood of any oak; used especially for furniture and flooring a deciduous tree of the genus Quercus; has acorns and lobed leaves; "great oaks grow from little acorns"
Ãâó: wordnet.princeton.edu/perl/webwn
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|---|---|
| OAF |
lout: an awkward stupid person
Ãâó: wordnet.princeton.edu/perl/webwn
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| oasis |
a fertile tract in a desert (where the water table approaches the surface) haven: a shelter serving as a place of safety or sanctuary
Ãâó: wordnet.princeton.edu/perl/webwn
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| oat |
annual grass of Europe and North Africa; grains used as food and fodder (referred to primarily in the plural: `oats') seed of the annual grass Avena sativa (spoken of primarily in the plural as `oats')
Ãâó: wordnet.princeton.edu/perl/webwn
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| oat cell carcinoma |
highly malignant carcinoma composed of small round or egg-shaped cells with little cytoplasm; lung cancers are frequently oat cell carcinomas
Ãâó: wordnet.princeton.edu/perl/webwn
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| OA | an awkward stupid person |
|---|---|
| OA | ill-mannered and coarse and contemptible in behavior or appearance |
| OA | an island of central Hawaii (between Molokai and Kauai) |
| OA | an island of central Hawaii (between Molokai and Kauai) |
| OA | a deciduous tree of the genus Quercus |
| OA | the hard durable wood of any oak |
| OA | consisting of or made of wood of the oak tree |
| OA | oak gall caused by larvae of a cynipid wasp |
| OA | a black plant louse that lives on oaks and dogwoods |
| OA | a tree of the genus Castanopsis |
| OA | bright blue-green fern widely distributed especially in damp acid woodlands of temperate northern hemisphere |
| OA | a deciduous tree of the genus Quercus |
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