/ Dictionary / Index A amplexus: Meaning and Definition of Find definitions for: am•plex•us Pronunciation: (am-plek'sus), [key] — pl. -us•es, -us. the clasping posture of fertilization in frogs and toads. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. amplexifoliate ampliate Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language