What is "cathodic"

Cathodic \Ca*thod"ic\ (k[.a]*th[o^]d"[i^]k), a. (Physiol.) A term applied to the centrifugal, or efferent, course of the nervous influence.
--Marshall Hall.

a. 1 (context anatomy English) Proceeding from a nerve centre; efferent 2 (context physics English) Of or pertaining to a cathode

adj. of or at or pertaining to a cathode; "cathodic deposition of metals" [ant: anodic]