/ 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 Related Content Daily Word Quiz: stringent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language