'Icosahedral' definitions:
Definition of 'icosahedral'
From: WordNet
adjective
Of or relating to an icosahedron
Definition of 'Icosahedral'
From: GCIDE
- Icosahedral \I`co*sa*he"dral\, a. [See Icosahedron.] (Geom.) Having twenty equal sides or faces. [1913 Webster]