tetrahedron

n. 四面体

发音

US /ˌtɛtɹəˈhiːdɹən/
UK /ˌtɛtɹəˈhiːdɹən/

词形变化

tetrahedra 复数 tetrahedra tetrahedrons tetrahedrons 复数

别名

tetraedron tetraedrum

释义与例句

n.
  1. 1.

    A polyhedron with four faces; the regular tetrahedron, the faces of which are equal equilateral triangles, is one of the Platonic solids.

    四面体

    数学

词汇关系

名词

上位词 1

polyhedron

相关短语

truncated tetrahedron fire tetrahedron triakis tetrahedron Hill tetrahedron

词源

From Ancient Greek τετράεδρον (tetráedron, “triangle-based pyramid”), from τετράεδρος (tetráedros), from τετράς (tetrás, “four”) + ἕδρα (hédra, “seat”). By surface analysis, tetra- + -hedron.

来源：wiktionary