'Tetartohedral' definitions:
Definition of 'Tetartohedral'
From: GCIDE
- Tetartohedral \Te*tar`to*he"dral\, a. [Gr. ? fourth + ? base.] (Crystallog.) Having one fourth the number of planes which are requisite to complete symmetry. -- {Te*tar`to*he"dral*ly}, adv. [1913 Webster]