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
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Meanwhile, the five-year survival rate is less than 15 percent for pancreatic cancer patients (although this can vary depending on the stage of cancer) and even lower for glioblastoma, a fast growing type of brain tumor.
—
Hannah Millington, MSNBC Newsweek, 4 Aug. 2025
Following on from their breakthrough human trial that successfully reprogrammed the immune system to overpower glioblastoma, an aggressive brain tumor, the same scientists have now further developed the mRNA vaccine to fight not one but any cancer.
—New Atlas, 18 July 2025
Phelan posted an update video stating that on Sept. 5, she was diagnosed with stage 4 glioblastoma, a highly aggressive brain tumor.
—Viola Flowers, NBC news, 26 May 2025
Biden family history with cancer Biden's son, Beau Biden, died of glioblastoma, a form of brain cancer, in 2015 at age 46.
—Ed O'Keefe, CBS News, 19 May 2025
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Hannah Millington, MSNBC Newsweek, 4 Aug. 2025
Following on from their breakthrough human trial that successfully reprogrammed the immune system to overpower glioblastoma, an aggressive brain tumor, the same scientists have now further developed the mRNA vaccine to fight not one but any cancer.
—New Atlas, 18 July 2025
Phelan posted an update video stating that on Sept. 5, she was diagnosed with stage 4 glioblastoma, a highly aggressive brain tumor.
—Viola Flowers, NBC news, 26 May 2025
Biden family history with cancer Biden's son, Beau Biden, died of glioblastoma, a form of brain cancer, in 2015 at age 46.
—Ed O'Keefe, CBS News, 19 May 2025
See All Example Sentences for glioblastoma
Cite this Entry
“Glioblastoma.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/glioblastoma. Accessed 20 Aug. 2025.
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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