icosahedron
/ˌaɪkəʊsəˈhedrən/noun
(pl. icosahedra /-dre/ 或icosahedrons)
- a solid figure with twenty plane faces, especially equilateral triangular ones（尤指呈等边三角形面的）二十面体。
派生词
icosahedral
adjective词源
late 16th cent.: via late Latin from Greek eikosaedron, neuter (used as a noun) of eikosaedros 'twenty-faced'.