Definition of prismoid in English:

prismoid

Syllabification: pris·moid
Pronunciation: /ˈprizmoid
 
/

noun

Geometry
A solid geometric figure like a prism, in which the end faces have the same number of sides but are not equal.

Definition of prismoid in:

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Word of the day retroflex
Pronunciation: ˈrɛtrə(ʊ)flɛks
adjective
turned backwards