astrocytoma

noun

as·​tro·​cy·​to·​ma ˌa-strə-sī-ˈtō-mə How to pronounce astrocytoma (audio)
plural astrocytomas also astrocytomata ˌa-strə-sī-ˈtō-mə-tə How to pronounce astrocytoma (audio)
: a nerve-tissue tumor composed of astrocytes

Examples of astrocytoma in a Sentence

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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.
Doctors informed him that the tumor, known as an astrocytoma, was the size of a blueberry and was located in his left frontal lobe. — Joey Nolfi, Entertainment Weekly, 2 Sep. 2026 Low-grade astrocytomas are more common in children, while high-grade astrocytomas, such as glioblastoma, tend to grow and spread within the brain and spinal cord quickly and are more common in adults. — Angeline Jane Bernabe, ABC News, 28 Aug. 2026 In October 2024, Mitch was diagnosed with an aggressive, grade four brain tumor called an astrocytoma. — Vanessa Etienne, PEOPLE, 16 July 2026 In September 2021, she was diagnosed with Grade III anaplastic astrocytoma—a brain tumor that develops from a slower-growing mass and becomes more aggressive. — Lucy Notarantonio, MSNBC Newsweek, 18 Aug. 2025 See All Example Sentences for astrocytoma

Word History

Etymology

astrocyte + -oma

First Known Use

1901, in the meaning defined above

Time Traveler
The first known use of astrocytoma was in 1901

Rhymes for astrocytoma

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Browse Nearby Words

astrocyte
astrocytoma
astrodiagnosis
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Cite this Entry

“Astrocytoma.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/astrocytoma. Accessed 4 Sep. 2026.

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Medical Definition

astrocytoma

noun
as·​tro·​cy·​to·​ma ˌas-trə-sī-ˈtō-mə How to pronounce astrocytoma (audio)
plural astrocytomas also astrocytomata -mət-ə How to pronounce astrocytoma (audio)
: a nerve-tissue tumor composed of astrocytes
Last Updated: - Updated example sentences
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