noun
icosagon
eye-KOS-uh-gon
Icosagon (noun) means a polygon with twenty sides and twenty angles. Example: “The designer used an icosagon as the base for the coin's outline.”
noun
1
A polygon with twenty sides and twenty angles.
"The designer used an icosagon as the base for the coin's outline."
"A regular icosagon has twenty equal sides and twenty equal angles."
"Engineers modelled the dome's frame as a folded icosagon."
How to use icosagon
Learner’s notesIn plain EnglishA shape with twenty straight sides.
When to use it
This is a specialist geometry term rather than everyday vocabulary.
Memory tip
The icosa- part means twenty, the same root used in icosahedron, a twenty-faced solid.
Trace the full origin ↓
Easily confused with
Common pairings
a regular icosagon
an icosagon frame
the sides of an icosagon
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Fill the gap
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The designer used an _____ as the base for the coin's outline.
Etymology
Icosagon comes from Ancient Greek, built from a word meaning twenty joined to a word meaning angle, so the name literally describes a shape having twenty angles.
Synonyms
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20-gon
Rhymes for icosagon
wagon
dragon
Aragon
nonagon
octagon
paragon
heptagon
pentagon
tarragon
dodecagon
bandwagon
pendragon
See all rhymes for icosagon →
Frequently asked questions
What is an icosagon?
An icosagon is a polygon with twenty sides and twenty angles.
What is another name for an icosagon?
It is also known as a 20-gon.
Where does the word icosagon come from?
It comes from Ancient Greek words meaning twenty and angle, combined to describe a twenty-sided shape.
What is the meaning of icosagon?
"icosagon" (noun) means a polygon with twenty sides and twenty angles.
