atmo

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Definition of atmo

2 senses · 1 part of speech · etymology included

noun

(dated)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.

“1880? William Thomson, 1st Baron Kelvin, Heat under a constant pressure of one atmo”
“In this case, at a pressure of one atmo, the quantity of gas absorbed by one gramme of water is .875 gramme at 0°C.”
“Now the above change of ratio is established at a pressure about 2.5/10⁶ atmo as given by log. dec., when the mean free path of a molecule of air ought to be about 10⁶ × .00001 ÷ 2.5 centim. or 4 centim., which is about the radius of the bulb.”

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noun

(dated)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.

“1880? William Thomson, 1st Baron Kelvin, Heat under a constant pressure of one atmo”
“In this case, at a pressure of one atmo, the quantity of gas absorbed by one gramme of water is .875 gramme at 0°C.”
“Now the above change of ratio is established at a pressure about 2.5/10⁶ atmo as given by log. dec., when the mean free path of a molecule of air ought to be about 10⁶ × .00001 ÷ 2.5 centim. or 4 centim., which is about the radius of the bulb.”
(abbreviation, alt-of, clipping, colloquial)Clipping of atmosphere

Definitions from Wiktionary, CC BY-SA.

From atmosphere.

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