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heptagon

Pronunciation: /ˈhɛptəg(ə)n/
Definition of heptagon

noun

  • a plane figure with seven straight sides and angles.

Derivatives

heptagonal

Pronunciation: /-ˈtag(ə)n(ə)l/
adjective

Origin:

late 16th century: from Greek heptagonon, neuter (used as a noun) of heptagonos 'seven-angled'

heptagon in other Oxford dictionaries

Definition of heptagon in the US English dictionary

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