adjective
R
Shaped like a pyramid with a triangular base and three sides, or having four faces.
The carbon atom forms bonds that create a tetrahedral shape.
R
Involving or relating to four elements or parts.
The tetrahedron is a basic shape in geometry with four triangular faces.
translation
Shaped like a pyramid with a triangular base and three sides, or having four faces.; Involving or relating to four elements or parts.