disphenoid

(redirected from Tetragonal disphenoid)

disphenoid

[dī′sfē‚nȯid]
(crystallography)
A crystal form with four similar triangular faces combined in a wedge shape; can be tetragonal or orthorhombic.
A crystal form with eight scalene triangles combined in pairs.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.