| atmo | 1. <prefix> Prefix denoting steam or vapor; or derived by action of steam or vapor. 2. <physics> The standard atmospheric pressure used in certain physical measurements calculations; conventionally, that pressure under which the barometer stands at 760 millimetres, at a temperature of 0 deg Centigrade, at the level of the sea, and in the latitude of Paris. Origin: Contr. Fr. Atmosphere, G. Atmos, steam, vapor Source: Websters Dictionary (20 Jun 2000) |
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