/ Dictionary / Index A antinutrient: Meaning and Definition of Find definitions for: an•ti•nu•tri•ent Pronunciation: (an"tē-n'trē-unt, -ny'-, an"tī-), [key] — n. Biochem. a substance that interferes with the utilization of one or more nutrients by the body, as oxalate and phytate, which prevent calcium absorption. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. antinuke Antioch Related Content Daily Word Quiz: resilient Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language