Dĭ'pris-măt'ic, a.

a. [Gr. δι, for δίς, twice, twofold, and Eng. prismatic, q. v.]

1. Doubly prismatic. Jameson.
2. (Crystallog.) Having cleavages parallel to the sides of a four-sided vertical prism, and at the same time to an horizontal prism. Mohs.