/ Dictionary / Index A antiferromagnet: Meaning and Definition of Find definitions for: an•ti•fer•ro•mag•net Pronunciation: (an"tē-fer"ō-mag'nit, an"tī-), [key] — n. Physics. an antiferromagnetic substance. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. antifeedant antiferromagnetic Related Content Daily Word Quiz: mamba Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language