tetrahedron
Plural: tetrahedra, tetrahedrons
Noun
- any polyhedron having four plane faces
- A polyhedron with four faces; the regular tetrahedron, the faces of which are equal equilateral triangles, is one of the Platonic solids.
Origin / Etymology
From Ancient Greek τετράεδρον (tetráedron, “triangle-based pyramid”), from τετράεδρος (tetráedros), from τετράς (tetrás, “four”) + ἕδρα (hédra, “seat”). By surface analysis, tetra- + -hedron.
Scrabble Score: 15
tetrahedron: valid Scrabble (US) TWL Wordtetrahedron: valid Scrabble Word in Merriam-Webster MW Dictionary
tetrahedron: valid Scrabble Word in International Collins CSW Dictionary
Words With Friends Score: 15
tetrahedron: valid Words With Friends Word