octagon

play
noun oc·ta·gon \ˈäk-tə-ˌgän\

Definition of octagon

  1. :  a polygon of eight angles and eight sides

octagonal

play \äk-ˈta-gə-nəl\ adjective

octagonally

play \äk-ˈta-gə-nəl-ē\ adverb

Origin and Etymology of octagon

Latin octagonum, from Greek oktagōnon, from okta- + -gōnon -gon


First Known Use: 1594


OCTAGON Defined for English Language Learners

octagon

play
noun oc·ta·gon \ˈäk-tə-ˌgän\

Definition of octagon for English Language Learners

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


OCTAGON Defined for Kids

octagon

play
noun oc·ta·gon \ˈäk-tə-ˌgän\

Definition of octagon for Students

  1. :  a flat geometric figure with eight angles and eight sides


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