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pentagonal

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adjective pen·tag·o·nal \pen-ˈta-gə-nəl\

Definition of pentagonal

  1. 1 :  having five sides and five angles

  2. 2 :  having a pentagon as a cross section or as a base <a pentagonal pyramid>

pen·tag·o·nal·ly play \-nəl-ē\ adverb


1571

First Known Use of pentagonal

1571

Rhymes with pentagonal


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