i·co·sa·he·dron ( -k  s -h  drn, -k s-)n. pl. i·co·sa·he·drons or i·co·sa·he·dra (-dr ) A polyhedron having 20 faces. [Greek eikosaedron : eikosi, twenty; see w k t- in Indo-European roots + -edron, -hedron.]i·co sa·hedral (-drl) adj. |   |
icosahedron [ˌaɪkəsəˈhiːdrən]
n pl -drons, -dra [-drə]
(Mathematics) a solid figure having 20 faces. The faces of a regular icosahedron are equilateral triangles
[from Greek eikosaedron, from eikosi twenty + -edron -hedron]
icosahedral adj
| icosahedron (-ks-hdrn) Plural icosahedrons or icosahedra A polyhedron having twenty faces. icosahedral adjective |  |
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. |  icosahedron - any polyhedron having twenty plane facespolyhedron - a solid figure bounded by plane polygons or faces |
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