/ Dictionary / Index G germicide: Meaning and Definition of Find definitions for: ger•mi•cide Pronunciation: (jûr'mu-sīd"), [key] — n. an agent for killing germs or microorganisms. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: germicide (Thesaurus) germfree germinability Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language