Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The standard atmospheric pressure used in certain physical measurements and calculations; conventionally, that pressure under which the barometer stands at 760 millimeters, at a temperature of 0° Centigrade, at the level of the sea, and in the latitude of Paris.

from the GNU version of the Collaborative International Dictionary of English

  • n. The standard atmospheric pressure used in certain physical measurements calculations; conventionally, that pressure under which the barometer stands at 760 millimeters, at a temperature of 0° Centigrade, at the level of the sea, and in the latitude of Paris.

from The Century Dictionary and Cyclopedia

  • n. The first element, meaning vapor, in some compound words of Greek origin.

Etymologies

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