assortative mating

noun Animal Behavior, Psychology.

the reproductive pairing of individuals that have more traits in common than would likely be the case if mating were random (contrasted with disassortative mating).
Compare panmixia.

Origin of assortative mating

First recorded in 1895–1900 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Medicine definitions for assortative mating

assortative mating

[ ə-sôrtə-tĭv ]


Nonrandom mating in which individuals mate preferentially according to phenotype.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.