noun
enneadecagon
en-ee-uh-DEK-uh-gon
Enneadecagon (noun) means an enneadecagon is a polygon with nineteen sides and nineteen angles. Example: “The architect sketched an unusual enneadecagon for the pavilion's floor plan.”
noun
1
geometry An enneadecagon is a polygon with nineteen sides and nineteen angles.
"The architect sketched an unusual enneadecagon for the pavilion's floor plan."
"Drawing an enneadecagon accurately by hand is much harder than drawing a hexagon."
How to use enneadecagon
Learner’s notesIn plain EnglishAn enneadecagon is simply a nineteen-sided shape.
When to use it
It is a specialist geometry term rarely used outside mathematical contexts.
Memory tip
If the full word feels unwieldy, nonadecagon or 19-gon mean exactly the same thing.
Trace the full origin ↓
Common pairings
regular enneadecagon
draw an enneadecagon
sides of an enneadecagon
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The architect sketched an unusual _____ for the pavilion's floor plan.
Etymology
Enneadecagon is formed from the combining form enneadeca-, meaning nineteen, joined with -gon, the ending used for shapes with a given number of angles.
Synonyms
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19-gon
nonadecagon
Rhymes for enneadecagon
See all rhymes for enneadecagon →Frequently asked questions
What is an enneadecagon?
It is a shape with nineteen straight sides and nineteen angles.
Is there another name for a nineteen-sided shape?
Yes, it can also be called a 19-gon or a nonadecagon.
Why is nineteen used in the name enneadecagon?
The prefix enneadeca- comes from a combining form meaning nineteen, which is joined to -gon to name the shape.
What is the meaning of enneadecagon?
"enneadecagon" (noun) means an enneadecagon is a polygon with nineteen sides and nineteen angles.
