/ Dictionary / Index G gonopodium: Meaning and Definition of Find definitions for: gon•o•po•di•um Pronunciation: (gon"u-pō'dē-um), [key] — pl. -po•di•a the modified anal fin of a male poeciliid fish, serving as an organ of copulation. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. gonophore gonopore Related Content Daily Word Quiz: tenacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language