spherulite

noun

spher·​u·​lite ˈsfir-yə-ˌlīt How to pronounce spherulite (audio)
ˈsfer-, 
-ə-ˌlīt
: a usually spherical crystalline body of radiating crystal fibers often found in vitreous volcanic rocks
spherulitic
ˌsfir-yə-ˈli-tik How to pronounce spherulite (audio)
ˌsfer-, 
-ə-ˌli-
adjective

Word History

First Known Use

1823, in the meaning defined above

Time Traveler
The first known use of spherulite was in 1823

Rhymes for spherulite

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Browse Nearby Words

spherule
spherulite
spherulitic
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Cite this Entry

“Spherulite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/spherulite. Accessed 7 Jul. 2026.

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Medical Definition

More from Merriam-Webster on spherulite

Britannica.com: Encyclopedia article about spherulite

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