Heptagon Definition
hĕptə-gŏn
noun
A plane figure with seven angles and seven sides.
Webster's New World
Other Word Forms of Heptagon
Noun
Singular:
heptagon
Plural:
heptagonsOrigin of Heptagon
-
Latin heptagōnon from Greek heptagōnos having seven angles hepta- hepta- -gōnos angled –gon
From American Heritage Dictionary of the English Language, 5th Edition
Since 16th century, from Ancient Greek ἑπτάγωνον (heptagonon), from ἑπτά (hepta, “seven”) + γωνία (gonia, “angle”).
From Wiktionary
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