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heptagon

noun hep·ta·gon \ ˈhep-tə-ˌgän \

Definition of heptagon

:a polygon of seven angles and seven sides
—

heptagonal

play \hep-ˈta-gə-nᵊl\ adjective

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Illustration of heptagon

Origin and Etymology of heptagon

Greek heptagōnos heptagonal, from hepta + gōnia angle — more at -gon

HEPTAGON Defined for English Language Learners

heptagon

noun

Definition of heptagon for English Language Learners

  • mathematics : a flat shape that has seven sides and seven angles

HEPTAGON Defined for Kids

heptagon

noun hep·ta·gon \ ˈhep-tə-ˌgän \

Definition of heptagon for Students

:a closed geometric figure having seven angles and seven sides

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