glioblastoma
noun
glio·blas·to·ma
ˌglī-ō-ˌbla-ˈstō-mə 
variants
or less commonly glioblastoma multiforme
plural glioblastomas also glioblastomata
ˌglī-ō-ˌbla-ˈstō-mə-tə
or glioblastomas multiforme or glioblastoma multiformes
or glioblastomas multiforme or glioblastoma multiformes
: a malignant rapidly growing astrocytoma of the central nervous system and usually of a cerebral hemisphere
Examples of glioblastoma in a Sentence
Recent Examples on the Web
Unfortunately, a cure for glioblastoma remains undiscovered.
—
Eric Sondheimer, Los Angeles Times, 18 May 2026
After months away from the Today show, Jones shared that her husband had been privately diagnosed with glioblastoma before dying at the age of 45.
—Rachel McRady, PEOPLE, 14 May 2026
Last December, Collins announced his diagnosis with Stage 4 glioblastoma, an aggressive form of brain cancer.
—Peter Sblendorio, New York Daily News, 13 May 2026
Collins announced he was diagnosed with Stage 4 glioblastoma in December, which has an extremely low survival rate.
—CBS News, 13 May 2026
See All Example Sentences for glioblastoma
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Eric Sondheimer, Los Angeles Times, 18 May 2026
After months away from the Today show, Jones shared that her husband had been privately diagnosed with glioblastoma before dying at the age of 45.
—Rachel McRady, PEOPLE, 14 May 2026
Last December, Collins announced his diagnosis with Stage 4 glioblastoma, an aggressive form of brain cancer.
—Peter Sblendorio, New York Daily News, 13 May 2026
Collins announced he was diagnosed with Stage 4 glioblastoma in December, which has an extremely low survival rate.
—CBS News, 13 May 2026
See All Example Sentences for glioblastoma
Cite this Entry
“Glioblastoma.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/glioblastoma. Accessed 25 May. 2026.
Copy CitationMedical Definition
glioblastoma
noun
glio·blas·to·ma
ˌglī-(ˌ)ō-bla-ˈstō-mə
plural glioblastomas also glioblastomata
-mət-ə
: a malignant rapidly growing astrocytoma of the central nervous system and usually of a cerebral hemisphere
Glioblastoma is the worst grade of malignant glioma, a relatively uncommon but deadly class of brain tumors that kills 97% of those diagnosed within 5 years.—Greg Miller, Science
Greg Miller, Sciencecalled also glioblastoma multiforme
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