icosagon

English

Etymology

From Ancient Greek εἰκοσάγωνος (eikosagōnos, “having twenty sides”), from εἴκοσι (eikosi, “twenty”) + γωνία (gōnia, “angle”).

Pronunciation

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Noun

icosagon (plural icosagons)

1. (mathematics) A polygon with twenty sides and twenty angles.
   • 1993 The upper half of a regular icosagon frame is folded. - author? - Space Structures 4

Synonyms

• 20-gon