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partial pressure

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noun Physics, Chemistry.
the pressure that a gas in a mixture of gases would exert if it occupied the same volume as the mixture at the same temperature.
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Origin of partial pressure

First recorded in 1855–60
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

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British Dictionary definitions for partial pressure

partial pressure

noun
the pressure that a gas, in a mixture of gases, would exert if it alone occupied the whole volume occupied by the mixture
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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