| ostreaceous | <zoology> Of or pertaining to an oyster, or to a shell; shelly. "The crustaceous or ostreaceous body." (Cudworth) Origin: L. Ostrea an oyster. See Oyster. Source: Websters Dictionary (01 Mar 1998) |
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| ostreotoxism | Poisoning from eating infected or contaminated oysters. Origin: G. Ostreon, oyster, + toxikon, poison (05 Mar 2000) |
| ostrich | <zoology> A large bird of the genus Struthio, of which Struthio camelus of Africa is the best known species. It has long and very strong legs, adapted for rapid running; only two toes; a long neck, nearly bare of feathers; and short wings incapable of flight. The adult male is about eight feet high. The South African ostrich (Struthio australis) and the Asiatic ostrich are considered distinct species by some authors. Ostriches are now domesticated in South Africa in large numbers for the sake of their plumes. The body of the male is covered with elegant black plumose feathers, while the wings and tail furnish the most valuable white plumes. Ostrich farm, a farm on which ostriches are bred for the sake of their feathers, oil, eggs, etc. Ostrich farming, the occupation of breeding ostriches for the sake of their feathers, etc. <botany> Ostrich fern a kind of fern (Onoclea Struthiopteris), the tall fronds of which grow in a circle from the rootstock. It is found in alluvial soil in Europe and North America. Origin: OE. Ostriche, ostrice, OF. Ostruche, ostruce, F. Autruche, L. Avis struthio; avis bird + struthio ostrich, fr. Gr, fr. Bird, sparrow. Cf. Aviary, Struthious] [Formerly written also estrich. Source: Websters Dictionary (01 Mar 1998) |
| Ostrum-Furst syndrome | <syndrome> Congenital synostosis of the neck. (05 Mar 2000) |
| Ostwald's solubility coefficient | The milliliters of gas dissolved per milliliter of liquid and per atmosphere (760 mm of Hg) partial pressure of the gas at any given temperature. This differs from Bunsen's solubility coefficient (a) in that the amount of dissolved gas is expressed in terms of its volume at the temperature of the experiment, instead of STPD. Thus, lambda = a (1 + 0.00367t), where t = temperature in degrees Celsius. (05 Mar 2000) |
| Ostwald, Friedrich Wilhelm | <person> German physical chemist and Nobel laureate, 1853-1932. See: Ostwald's solubility coefficient. (05 Mar 2000) |
| osteochondromyxoma |
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| osteosynthesis |
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| osteochondropathy |
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| osteothrombosis |
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| osteocomma |
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