One entry found for tetrahedron.

Main Entry: tet·ra·he·dron
Pronunciation: te-tr-h-drn
Function: noun
Inflected Form(s): plural -drons or tetrahedra /-dr/
: a polyhedron that has four faces
- tet·ra·he·dral /-drl/ adjective
[tetrahedron illustration]

Pronunciation Symbols