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
The startup, Altido Therapeutics, is trying to commercialize a CAR-T cell therapy developed at Massachusetts General Hospital (MGH) for glioblastoma, a nearly always fatal brain tumor.
—
Jason Mast, STAT, 28 Jan. 2026
Temozolomide—the standard of care for glioblastoma—works by depositing a methyl group onto the DNA of cells, specifically on guanine, one of DNA’s four base molecules.
—Isabella Backman, Hartford Courant, 27 Jan. 2026
In diseases like glioblastoma — diffuse, infiltrative, and resistant — delivery is often the difference between theoretical efficacy and real-life impact.
—Sanjay Srivastava, Forbes.com, 26 Jan. 2026
Some of these natural compounds are even making their way into human medicine — like a molecule now in phase three clinical trials for treating glioblastoma, an aggressive brain cancer.
—David L. Coddon, San Diego Union-Tribune, 22 Jan. 2026
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Jason Mast, STAT, 28 Jan. 2026
Temozolomide—the standard of care for glioblastoma—works by depositing a methyl group onto the DNA of cells, specifically on guanine, one of DNA’s four base molecules.
—Isabella Backman, Hartford Courant, 27 Jan. 2026
In diseases like glioblastoma — diffuse, infiltrative, and resistant — delivery is often the difference between theoretical efficacy and real-life impact.
—Sanjay Srivastava, Forbes.com, 26 Jan. 2026
Some of these natural compounds are even making their way into human medicine — like a molecule now in phase three clinical trials for treating glioblastoma, an aggressive brain cancer.
—David L. Coddon, San Diego Union-Tribune, 22 Jan. 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 2 Feb. 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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