Breadcrumb Home > Dictionary > Index A assortative mating: Meaning and Definition of Find definitions for: assort'ative mat'ing Pronunciation: [key] — Animal Behav., Psychol. Animal Behav.,Psychol. 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). Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. assort assorted TrendingHere are the facts and trivia that people are buzzing about. Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 12 Steps to a New Year New Year's Resolution to Slim Down? Martin Luther King Speeches Books of the Bible: Old Testament Books in Order ✖ Related Content Daily Word Quiz: rapacious Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language