/ Dictionary / Index H Hardy-Weinberg law: Meaning and Definition of Find definitions for: Har'dy-Wein'berg law" Pronunciation: (här'dē-wīn'bûrg), [key] — Genetics. Genetics. a principle stating that in an infinitely large, randomly mating population in which selection, migration, and mutation do not occur, the frequencies of alleles and genotypes do not change from generation to generation. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. hardy ageratum hare Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language