spher·​oid | \ˈsfir-ˌȯid, ˈsfer-\

Definition of spheroid 

: a figure resembling a sphere also : an object of approximately spherical shape

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Other Words from spheroid

spheroidal \ sfi-​ˈrȯi-​dᵊl \ or less commonly spheroid adjective
spheroidally \ sfi-​ˈrȯi-​dᵊl-​ē \ adverb

Examples of spheroid in a Sentence

Recent Examples on the Web

The first human brain balls—aka cortical spheroids, aka neural organoids—agglomerated into existence just a few short years ago. Megan Molteni, WIRED, "Mini Brains Just Got Creepier—They’re Growing Their Own Veins," 3 Apr. 2018 On the contrary, there is an irresistible impulse among the boys of suburban Minneapolis to put our gym shoes of varying stripe and quality through a prolate spheroid. Steve Rushin, SI.com, "How the toys and totems of the 1970s shaped a lifelong love of sports," 21 June 2017 The Earth is not a perfect sphere, but an oblate spheroid flattened at the poles. Randy Alfred, WIRED, "June 19, 240 B.C.: The Earth Is Round, and It’s This Big," 19 June 2008

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'spheroid.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of spheroid

1570, in the meaning defined above

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Time Traveler for spheroid

The first known use of spheroid was in 1570

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English Language Learners Definition of spheroid

: an object that is somewhat round but not perfectly round

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full of whispering sounds

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