icosahedron

n. 二十面体

发音

US /ˌaɪkoʊsəˈhiːdɹən/

词形变化

icosahedra 复数 icosahedra icosahedrons icosahedrons 复数

别名

icosaedron eicosaedrum icosaedrum

释义与例句

n.
  1. 1.

    A polyhedron with twenty faces.

    数学
  2. 2.

    A regular icosahedron: one of the Platonic solids, all of whose faces are regular (equilateral) triangles

    数学

词汇关系

名词

上位词 1

polyhedron

相关短语

truncated icosahedron great icosahedron triakis icosahedron

词源

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

来源：wiktionary