deltahedron

发音

US

词形变化

deltahedra deltahedrons 复数 deltahedrons deltahedra 复数

释义与例句

n.
  1. 1.

    A polyhedron whose faces are all equilateral triangles.

    数学

    There are infinitely many deltahedra, but only eight that are convex.

词源

From delta (Greek letter) + -hedron referring to the triangular shape of the letter.

来源：wiktionary