'Tetrahedral' definitions:
Definition of 'Tetrahedral'
From: GCIDE
- Tetrahedral \Tet`ra*he"dral\, a. [See Tetrahedron.]
- 1. Having, or composed of, four sides. [1913 Webster]
- 2. (Crystallog.) (a) Having the form of the regular tetrahedron. (b) Pertaining or related to a tetrahedron, or to the system of hemihedral forms to which the tetrahedron belongs. [1913 Webster]
- Tetrahedral angle (Geom.), a solid angle bounded or inclosed by four plane angles. [1913 Webster]