dodecagon

noun
do·​deca·​gon | \ dō-ˈde-kə-ˌgän How to pronounce dodecagon (audio) \

Definition of dodecagon

: a polygon of 12 angles and 12 sides

First Known Use of dodecagon

circa 1658, in the meaning defined above

History and Etymology for dodecagon

Greek dōdekagōnon, from dōdeka- + -gōnon -gon

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The first known use of dodecagon was circa 1658

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Cite this Entry

“Dodecagon.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/dodecagon. Accessed 15 December 2019.

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