| ocean | The great body of salt water that covers mores than two thirds of the surface of the earth, any of its five principal geographical divisions, the Atlantic, Pacific, Indian, Arctic, and Antartic. (09 Oct 1997) |
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| ocean-type fish | An anadromous fish that shows no indication on its scales or other hard parts of an extended freshwater residence early in its life. (09 Oct 1997) |
| oceanography | A description of the ocean. Origin: Ocean. Source: Websters Dictionary (01 Mar 1998) |
| oceanology | <study> That branch of science which relates to the ocean. Origin: Ocean. Source: Websters Dictionary (01 Mar 1998) |
| Oceanospirillum | A genus of motile, nonsporeforming, aerobic bacteria (family Spirillaceae) containing Gram-negative, rigid, helical cells which are 0.3 to 1.2 um in diameter. Motile cells contain bipolar fascicles of flagella. There is no growth anaerobically with nitrate. These organisms are chemoorganotrophic and possess a strictly respiratory metabolism; they neither oxidise nor ferment carbohydrates; found in marine environments. There are at present five species in this genus, of which the type species is Oceanospirillum linum. Origin: L. Oceanus, ocean, + spirillum, coil (05 Mar 2000) |
| oceanus | The god of the great outer sea, or the river which was believed to flow around the whole earth. Origin: L, from Gr. Source: Websters Dictionary (01 Mar 1998) |
| indian ocean | A body of water covering approximately one-fifth of the total ocean area of the earth, extending amidst africa in the west, Australia in the east, asia in the north, and antarctica in the south. Including the red sea and the persian gulf, it constitutes the third largest ocean after the atlantic ocean and the pacific ocean. (new encyclopaedia britannica micropaedia, 15th ed, 1990, p289) (12 Dec 1998) |
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| indian ocean islands | Numerous islands in the indian ocean situated east of madagascar, north to the arabian sea and east to sri lanka. Included are comoros (republic), madagascar (republic), maldives (republic), mauritius (parliamentary democracy), pemba (administered by tanzania), reunion (a department of france), and seychelles (republic). (12 Dec 1998) |