/ Dictionary / Index S sex hygiene: Meaning and Definition of Find definitions for: sex' hy"giene Pronunciation: [key] a branch of hygiene concerned with sex and sexual behavior as they relate to individual and community well-being. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sex hormone sexi- Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language