18-gon

Meanings

noun18-gon (plural 18-gons)

raregeometrySynonym of octadecagon: A polygon with 18 sides and 18 vertices.
Synonyms: octadecagon

nounSynonym of octadecagon: A polygon with 18 sides and 18 vertices.

Similar

Also see

From 18 + -gon.

Cite this entry

APA

18-gon. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/18-gon

MLA

“18-gon.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/18-gon. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “18-gon,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/18-gon.

Source: 18-gon on Wiktionary, CC BY-SA 4.0.