'Clinopinacoid' definitions:

Definition of 'Clinopinacoid'

From: GCIDE

Clinopinacoid \Cli`no*pin"a*coid\, n. [Gr. kli`nein to incline + E. pinacoid.] (Crystallog.) The plane in crystals of the monoclinic system which is parallel to the vertical and the inclined lateral (clinidiagonal) axes. [1913 Webster]