pentagram

名词 n.
中文释义
发音 pĕn′tə-grăm′

英文释义

名词 n.
  1. The shape of a five-pointed star constructed of five intersecting lines meeting at the vertices, such that a central pentagon and five surrounding isosceles triangles are formed; often with magical connotations; a 5/2 (or 5/3) star polygon.
    — Prove that the circles so belonging to the 6 pentagrams formed by 6 lines meet in a point, and so on; the series of theorems being interminable.

词形变化

pentagrams plural pentagramme alternative

词源

From Ancient Greek πεντάγραμμον (pentágrammon), noun form of the adjectives πεντάγραμμος (pentágrammos) and πεντέγραμμος (pentégrammos, “five-lined, having five lines”). Equivalent to penta- + -gram.
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