Dictionary

prismoid

prismoid

noun pris·moid \ˈpriz-ˌmid\

Definition of PRISMOID

:  a prismatoid whose parallel bases have the same number of sides
pris·moi·dal \priz-ˈmi-dəl\ adjective

First Known Use of PRISMOID

circa 1704

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March 05, 2015
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