prismoid

noun

pris·​moid ˈpriz-ˌmȯid How to pronounce prismoid (audio)
: a prismatoid whose parallel bases have the same number of sides
prismoidal
priz-ˈmȯi-dᵊl How to pronounce prismoid (audio)
adjective

Word History

First Known Use

1881, in the meaning defined above

Time Traveler
The first known use of prismoid was in 1881

Rhymes for prismoid

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Browse Nearby Words

prism level
prismoid
prism spectroscope
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Cite this Entry

“Prismoid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/prismoid. Accessed 21 Jul. 2025.

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