Advertisement
tetrahedron (n.)
"triangular pyramid, solid figure contained by four triangular surfaces," 1560s, from Late Greek tetraedron, noun use of neuter of tetraedros (adj.) "four-sided," from tetra- "four" (from PIE root *kwetwer- "four") + hedra "seat, base, chair, face of a geometric solid," from PIE root *sed- (1) "to sit." Related: Tetrahedral.
updated on April 27, 2017
Advertisement
Advertisement
Definitions of tetrahedron from WordNet
Dictionary entries near tetrahedron
Teton
tetra-
tetracycline
tetrad
tetragrammaton
tetrahedron
tetralogy
tetrameter
tetrapod
tetrarch
tetter