词族 · dodecahedron
词形变化
中文词源
dodecahedron 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。
英语词源
- 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).