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vigesimal

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adjective vi·ges·i·mal \vī-ˈje-sə-məl\

Definition of vigesimal

  1. :  based on the number 20



Origin and Etymology of vigesimal

Latin vicesimus, vigesimus twentieth; akin to Latin viginti twenty, Greek eikosi


First Known Use: circa 1656

Rhymes with vigesimal


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