pentagon

名词 n.
中文释义
英 /ˈpɛn.tə.ɡən/|/ˈpɛn.tə.ɡɒn/    美 /ˈpɛn.təˌɡɑn/

英文释义

名词 n.
  1. A polygon with five sides and five angles.
    — Imagine a vast sheet of paper on which straight Lines, Triangles, Squares, Pentagons, Hexagons, and other figures, instead of remaining fixed in their places, move freely about, […]
  2. A fort with five bastions.

词形变化

pentagons plural

词汇关系

近义词
5-gon quinquangle
衍生词
pentagonal pentagonoid pentagonous
相关词
pentagram quinquangle

词源

From Middle French pentagone, from Late Latin pentagōnum, from Ancient Greek πεντάγωνον (pentágōnon), noun use of the neuter of the adjective πεντάγωνος (pentágōnos, “five-angled”), from πέντε (pénte, “five”) + -γωνος (-gōnos, “angled”). Equivalent to penta- + -gon.
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