/ Dictionary / Index S secondary sex characteristic: Meaning and Definition of Find definitions for: sec'ondary sex' characteris"tic Pronunciation: [key] — Med. Med. any of a number of manifestations, as development of breasts or beard, muscularity, distribution of fat tissue, and change of pitch in voice, specific to each sex and incipient at puberty but not essential to reproduction. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. secondary seventh chord secondary spermatocyte Related Content Daily Word Quiz: loathe Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language