/ Dictionary / Index S spikedace: Meaning and Definition of Find definitions for: spike•dace Pronunciation: (spīk'dās"), [key] — pl. -dac•es, -dace. a scaleless, mottled, olive-brown fish, Meda fulgida, of the Gila River system in New Mexico and Arizona, having two dorsal spines. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. spike spike heath Related Content Daily Word Quiz: sinister Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language