English Explanatory Dictionary

octadecagon

English dictionary entry

Meanings

noun
  1. A polygon with 18 sides and 18 vertices.

Pronunciation

LL-Q1860 (eng)-Flame, not lame-octadecagon.wav

Word forms

octadecagon octadecagons

Etymology

From octadeca- + -gon.

Synonyms

18-gon
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