/ Dictionary / Index A antiferromagnetic: Meaning and Definition of Find definitions for: an•ti•fer•ro•mag•net•ic Pronunciation: (an"tē-fer"ō-mag-net'ik, an"tī-), [key] — adj. Physics. noting or pertaining to a substance in which, at sufficiently low temperatures, the magnetic moments of adjacent atoms point in opposite directions. Cf. diamagnetic, ferrimagnetic, ferromagnetic, paramagnetic. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: antiferromagnetic (Thesaurus) antiferromagnet antifertility 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