- the act of including.
- the state of being included.
- something that is included.
- Biology. a body suspended in the cytoplasm, as a granule.
- Mineralogy. a solid body or a body of gas or liquid enclosed within the mass of a mineral.
- Petrography. xenolith.
- Logic, Mathematics. the relationship between two sets when the second is a subset of the first.
Origin of inclusion
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- 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
- the relation between two sets that obtains when all the members of the first are members of the secondSymbol: X ⊆ Y
- strict inclusion or proper inclusionthe relation that obtains between two sets when the first includes the second but not vice versaSymbol: X ⊂ Y
- engineering a foreign particle in a metal, such as a particle of metal oxide
Word Origin and History for noninclusion
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
- 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.