[an-tee-fer-oh-mag-net-ik, an-tahy-]

adjective Physics.

noting or pertaining to a substance in which, at sufficiently low temperatures, the magnetic moments of adjacent atoms point in opposite directions.

Origin of antiferromagnetic

First recorded in 1935–40; anti- + ferromagnetic
Related formsan·ti·fer·ro·mag·ne·tism [an-tee-fer-oh-mag-ni-tiz-uh m, an-tahy-] /ˌæn tiˌfɛr oʊˈmæg nɪˌtɪz əm, ˌæn taɪ-/, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019