Word.ws English Dictionary

octadecagons

octadecagons is the plural of octadecagon.

Meaning of octadecagon

Noun

octadecagon (plural octadecagons)

  1. (rare) A polygon with 18 sides and 18 vertices.
    • A regular octadecagon cannot be constructed using a compass and straightedge.
    Synonyms:
    18-gon

Questions about octadecagons

What is octadecagons the plural of?
Octadecagons is the plural of octadecagon.

Words near octadecagons in the dictionary

  1. octadecadienoic
  2. octadecadienoic acid
  3. octadecadienoyl
  4. octadecafluorooctane
  5. octadecagon
  6. octadecagons
  7. octadecahedra
  8. octadecahedral
  9. octadecahedron
  10. octadecahedrons
  11. octadecahydrate

Source and license

Adapted from Wiktionary: octadecagons (page history and authors); octadecagon (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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