English edit

Etymology edit

From Ancient Greek εἰκοσιέν (eikosién, twenty-one) +‎ -gon.

Pronunciation edit

  • Hyphenation: i‧co‧si‧hen‧a‧gon

Noun edit

icosihenagon (plural icosihenagons)

  1. (geometry) A polygon with twenty-one edges and twenty-one angles.

Translations edit