Dictionary

icosahedron en · NOUN

Pronunciation

• (General-American) audio
• /(ˌ)aɪˌkɒsəˈhiːdɹən/
• /(ˌ)aɪˌkɔsəˈhiːdɹən/
• /(ˌ)aɪˌkoʊsəˈhiːdɹən/

Etymology

From Ancient Greek εἰκοσάεδρον (eikosáedron), from εἴκοσι (eíkosi, “twenty”) + ἕδρα (hédra, “face of a geometrical solid”). Equivalent to icosa- + -hedron.

Meanings

1. A polyhedron with twenty faces.
2. (specifically) A regular icosahedron: one of the Platonic solids, all of whose faces are regular (equilateral) triangles

Forms

Deriveds

supericosahedron · truncated icosahedron · hemi-icosahedron · icosahedronic · great icosahedron · triakis icosahedron

Relateds

icosahedral · icosahedrite

Synonyms

regular gyroelongated pentagonal bipyramid

Translations (33)

de Ikosaeder (a polyhedron) · eo dudekedro (a polyhedron) · et kakskümmendtahukas (a polyhedron) · cs ikosaedr (a polyhedron) · ru двадцатигра́нник (a polyhedron) · hu ikozaéder (a polyhedron) · nl twintigvlak (a polyhedron) · fi ikosaedri (a polyhedron) · cs dvacetistěn (a polyhedron) · et ikosaeeder (a polyhedron) · ca icosaedre (a polyhedron) · cs pravidelný dvacetistěn (regular icosahedron) · pt icosaedro (a polyhedron) · is tuttuguflötungur (a polyhedron) · io ikosaedro (a polyhedron) · nb ikosaeder (a polyhedron) · ko 정이십면체 (regular icosahedron) · vi nhị thập diện (a polyhedron) · ko 이십면체 (a polyhedron) · da ikosaeder (a polyhedron) · de Zwanzigflächner (a polyhedron) · fr icosaèdre (a polyhedron) · es icosaedro (a polyhedron) · sv ikosaeder (a polyhedron) · nl icosaëder (a polyhedron) · pl dwudziestościan foremny (a polyhedron) · ja 二十面体 (a polyhedron) · grc εἰκοσάεδρον (a polyhedron) · ja 正二十面体 (regular icosahedron) · ca icosàedre (a polyhedron) · ru икоса́эдр (a polyhedron) · el εικοσάεδρο (a polyhedron) · de 20-Flächner (a polyhedron)