Diamagnetic

Webster's Practical Dictionary- A Practical Dictionary of the Englih Language · 1884 · p. 117

di'a-mag-nefik, a. Pert, to, or exhibiting the phenomena of, diamagnetism. — n. A substance which, in a field of magnetic force, takes a position at right angles to that of the ordinary magnet. — Di'amagnefically, adv.