octadecagon
1 synonym for octadecagon, grouped by meaning and by how common each one is.
Noun — An octadecagon is a polygon with eighteen sides and eighteen corners.
Synonyms
Rare, literary or technical
Precise, but they will stand out — check the sense before using one.
18-gon
How to use octadecagon
The word patterns that sound natural to a native speaker.
regular octadecagon
draw an octadecagon
This is a rare, technical geometry term.
Etymology
Octadecagon is formed from octadeca-, meaning eighteen, and the suffix -gon, used for shapes with a set number of sides.
Full origin of octadecagon →Frequently asked questions
What is an octadecagon?
It is a polygon with eighteen sides and eighteen vertices.
How many sides does an octadecagon have?
An octadecagon has eighteen sides.
Is octadecagon a common shape name?
It is a rare, technical term mostly used in geometry.
