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.
Compare Dalton's law.
Origin of partial pressure
First recorded in 1855–60
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
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
The pressure that one component of a mixture of gases would exert if it were alone in a container.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.