Definitions from Wiktionary (octadecagon)
▸ noun: (geometry, rare) A polygon with 18 sides and 18 vertices.
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▸ noun: (geometry, rare) A polygon with 18 sides and 18 vertices.
Similar:
octadecahedron,
hexadecagon,
heptadecagon,
pentadecagon,
octacontagon,
undecagon,
tetradecagon,
hexahectaenneacontakaiheptagon,
enneadecagon,
hexadecahedron,
more...
Opposite:
▸ Words similar to octadecagon
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▸ Idioms related to octadecagon
▸ Wikipedia articles (New!)
▸ Popular adjectives describing octadecagon
▸ Words that often appear near octadecagon
▸ Rhymes of octadecagon
▸ Invented words related to octadecagon