ACTINIC

An Illustrated Encyclopaedic Medical Dictionary · 1891 · p. 2

adj, A2k-ti2n’i?k. From äxrtis, a ray. Fr.,act in i que. Ger., aktinisch. 1. Having the power of exciting chemical action (see A. Rays). 2. Pertaining to that power or its manifestation, [J. Herschel (B, 39).]