astrocytoma
noun
as·tro·cy·to·ma
ˌa-strə-sī-ˈtō-mə 
plural astrocytomas also astrocytomata
ˌa-strə-sī-ˈtō-mə-tə
: a nerve-tissue tumor composed of astrocytes
Examples of astrocytoma in a Sentence
Recent Examples on the Web
Eddie, then 30, was diagnosed with a grade 3 astrocytoma — a fast-growing malignant brain tumor.
—
Meredith Wilshere, PEOPLE, 20 Sep. 2025
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
Fast forward to now - I have been diagnosed with #diffusemidlineglioma, an extremely rare type of #astrocytoma #cancer.
—Stephanie Giang-Paunon, FOXNews.com, 6 Aug. 2025
Mack announced in January that she had been diagnosed with diffuse midline glioma, an extremely rare type of astrocytoma cancer.
—Marlene Lenthang, NBC news, 6 Aug. 2025
Fair was initially misdiagnosed in 2000 with high-grade astrocytoma ependymoma, then shortly after diagnosed with pilomyxoid astrocytoma.
—Deborah Laverty, Chicago Tribune, 10 May 2025
After the surgery, doctors diagnosed her with a grade 2 astrocytoma, also known as a diffuse astrocytoma or low-grade glioma.
—Jordan Greene, People.com, 13 Dec. 2024
However, on March 28, preliminary biopsy results revealed that Burke was suffering from a grade 4 astrocytoma tumor.
—Moira Ritter The Charlotte Observer (tns), al, 1 May 2023
The tumor was biopsied and Will was diagnosed with stage 3 astrocytoma, a cancer that is known to occur in the brain or spinal cord, according to the Mayo Clinic.
—Wendy Grossman Kantor, Peoplemag, 14 Feb. 2023
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Meredith Wilshere, PEOPLE, 20 Sep. 2025
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
Fast forward to now - I have been diagnosed with #diffusemidlineglioma, an extremely rare type of #astrocytoma #cancer.
—Stephanie Giang-Paunon, FOXNews.com, 6 Aug. 2025
Mack announced in January that she had been diagnosed with diffuse midline glioma, an extremely rare type of astrocytoma cancer.
—Marlene Lenthang, NBC news, 6 Aug. 2025
Fair was initially misdiagnosed in 2000 with high-grade astrocytoma ependymoma, then shortly after diagnosed with pilomyxoid astrocytoma.
—Deborah Laverty, Chicago Tribune, 10 May 2025
After the surgery, doctors diagnosed her with a grade 2 astrocytoma, also known as a diffuse astrocytoma or low-grade glioma.
—Jordan Greene, People.com, 13 Dec. 2024
However, on March 28, preliminary biopsy results revealed that Burke was suffering from a grade 4 astrocytoma tumor.
—Moira Ritter The Charlotte Observer (tns), al, 1 May 2023
The tumor was biopsied and Will was diagnosed with stage 3 astrocytoma, a cancer that is known to occur in the brain or spinal cord, according to the Mayo Clinic.
—Wendy Grossman Kantor, Peoplemag, 14 Feb. 2023
Cite this Entry
“Astrocytoma.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/astrocytoma. Accessed 29 Sep. 2025.
Copy CitationMedical Definition
astrocytoma
noun
as·tro·cy·to·ma
ˌas-trə-sī-ˈtō-mə
plural astrocytomas also astrocytomata
-mət-ə
: a nerve-tissue tumor composed of astrocytes
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