dodecahedron

英 [,dəʊdekə'hiːdr(ə)n; -'hed-]
  • n. (几何学的)[数] 十二面体
dodecahedron
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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。

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).