pa·​rab·​o·​loid pə-ˈra-bə-ˌlȯid How to pronounce paraboloid (audio)
: a surface all of whose intersections by planes are either parabolas and ellipses or parabolas and hyperbolas
paraboloidal adjective

Examples of paraboloid in a Sentence

Recent Examples on the Web So how many places are there where a paraboloid can equal zero? Quanta Magazine, 6 Oct. 2021 Imagine a paraboloid composed of a sequence of parabolas stacked side by side. Quanta Magazine, 6 Oct. 2021 Nearby, 16 stark-white paraboloid beams supported the Metropolitan Cathedral of Brasília like a crown of thorns. Heidi Mitchell, WSJ, 2 Nov. 2018 Kagawa Prefectural Gymnasium Built for the 1964 Olympics, the indoor stadium, a cantilevered hyberbolic paraboloid, is threatened with demolition because of leaks. Ben Ryder Howe, Town & Country, 16 Oct. 2017

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'paraboloid.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


parabola + -oid entry 1

First Known Use

circa 1702, in the meaning defined above

Time Traveler
The first known use of paraboloid was circa 1702

Dictionary Entries Near paraboloid

Cite this Entry

“Paraboloid.” Dictionary, Merriam-Webster, Accessed 4 Dec. 2023.

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