[in-kloo-zhuh n]


Origin of inclusion

1590–1600; 1945–50 for def 7; < Latin inclūsiōn- (stem of inclūsiō) a shutting in, equivalent to inclūs(us) (see incluse) + -iōn- -ion
Related formsnon·in·clu·sion, nounpre·in·clu·sion, nounre·in·clu·sion, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for inclusion

British Dictionary definitions for inclusion



the act of including or the state of being included
something included
geology a solid fragment, liquid globule, or pocket of gas enclosed in a mineral or rock
  1. the relation between two sets that obtains when all the members of the first are members of the secondSymbol: XY
  2. strict inclusion or proper inclusionthe relation that obtains between two sets when the first includes the second but not vice versaSymbol: XY
engineering a foreign particle in a metal, such as a particle of metal oxide
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

Word Origin and History for inclusion

c.1600, from Latin inclusionem (nominative inclusio) "a shutting up, confinement," noun of action from past participle stem of includere (see include).

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for inclusion




A nonliving mass, such as a droplet of fat, in the cytoplasm of a cell.
The process by which a foreign or heterogenous structure is misplaced in another tissue.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.