/ Dictionary / Index P parasiticide: Meaning and Definition of Find definitions for: par•a•sit•i•cide Pronunciation: (par"u-sit'u-sīd"), [key] — n. an agent or preparation that destroys parasites. —adj. destructive to parasites. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. parasitic parasitism Related Content Daily Word Quiz: fervor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language