spheroid

noun

spher·​oid ˈsfir-ˌȯid How to pronounce spheroid (audio) ˈsfer- How to pronounce spheroid (audio)
Synonyms of spheroidnext
: a figure resembling a sphere
also : an object of approximately spherical shape
spheroidal adjective
or less commonly spheroid
spheroidally adverb

Examples of spheroid in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Insights from a trophoblast spheroid model. Daniella Gray, MSNBC Newsweek, 5 Dec. 2025 Then, these pre-differentiated cells were assembled into spherical clusters known as spheroids, a formation that scientists have found aids tissue repair and regeneration. New Atlas, 23 Nov. 2025 Across each lumpy dark-gray spheroid cuts an uneven line. Harmon Siegel, Artforum, 1 Oct. 2025 After a week of exposure, the scientists separated the spheroids into individual cells to analyze gene expression and to measure fat accumulation. Sharon Udasin, The Hill, 11 Sep. 2025 See All Example Sentences for spheroid

Word History

First Known Use

1570, in the meaning defined above

Time Traveler
The first known use of spheroid was in 1570

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Cite this Entry

“Spheroid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/spheroid. Accessed 13 Dec. 2025.

Kids Definition

spheroid

noun
spher·​oid ˈsfi(ə)r-ˌȯid How to pronounce spheroid (audio)
ˈsfe(ə)r-
: a figure resembling a flattened sphere

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