prismoid

[priz-moid]

noun Geometry.

a solid having sides that are trapezoids and bases or ends that are parallel and similar but not congruent polygons.Compare prism(def 2).

Origin of prismoid

First recorded in 1695–1705; prism + -oid

Related formspris·moi·dal, adjective

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for prismoid

prismoid

noun

a prismatoid having an equal number of vertices in each of the two parallel planes and whose sides are trapeziums or parallelograms

Derived Formsprismoidal, adjective

Word Origin

C18: from French prismoïde; see prism, -oid

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

prismoid

Origin of .css-1fxfie5{font-size:22px;}@media (max-width:768px){.css-1fxfie5{font-size:18px;margin:0 10px 10px 0;word-break:break-all;word-wrap:break-word;-webkit-hyphens:auto;-moz-hyphens:auto;-ms-hyphens:auto;hyphens:auto;line-height:22px;}}prismoid

prismoid

Word Origin

Origin of prismoid