dodecahedron

• n. （几何学的）[数] 十二面体

do-, 二，词源同two, deca-, 十，词源同ten, -hed, 面，词源同sit. 用于数学名词十二面体。

dodecahedron (n.)

1560s, from Greek dodeka "twelve" (short for duodeka, from duo "two" + deka "ten;" compare dozen) + hedra "seat, base, chair, face of a geometric solid," from PIE root *sed- (1) "to sit" (see sedentary).