icosahedron
Plural: icosahedra, icosahedrons
Noun
- any polyhedron having twenty plane faces
- A polyhedron with twenty faces.
- A regular icosahedron: one of the Platonic solids, all of whose faces are regular (equilateral) triangles
Origin / Etymology
From Ancient Greek εἰκοσάεδρον (eikosáedron), from εἴκοσι (eíkosi, “twenty”) + ἕδρα (hédra, “face of a geometrical solid”). Equivalent to icosa- + -hedron.
Synonyms
regular gyroelongated pentagonal bipyramid
Scrabble Score: 17
icosahedron: valid Scrabble (US) TWL Wordicosahedron: valid Scrabble Word in Merriam-Webster MW Dictionary
icosahedron: valid Scrabble Word in International Collins CSW Dictionary
Words With Friends Score: 18
icosahedron: valid Words With Friends Word