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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In addition to Sykes, George, McGuinness and Kaneswaran, the group included Tom Parker, who died in March 2022 at the age of 33 after being diagnosed with stage 4 glioblastoma in 2020.
—
Erin Clack, PEOPLE, 20 Oct. 2025
Clinical trials testing the ability of these devices to deliver drugs to the brain to treat conditions like glioblastoma, brain metastases and Alzheimer’s disease are underway.
—Richard J. Price, The Conversation, 15 Oct. 2025
While early days, the discovery advances our knowledge on just why current treatments for glioblastoma have a low success rate and opens the door to new non-localized approaches in tackling this deadly brain cancer.
—New Atlas, 6 Oct. 2025
Given the January 2020 death of drummer/lyricist Neil Peart from glioblastoma, it’s been assumed that a Rush live reunion wasn’t in the cards.
—Annie Zaleski, Variety, 6 Oct. 2025
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Erin Clack, PEOPLE, 20 Oct. 2025
Clinical trials testing the ability of these devices to deliver drugs to the brain to treat conditions like glioblastoma, brain metastases and Alzheimer’s disease are underway.
—Richard J. Price, The Conversation, 15 Oct. 2025
While early days, the discovery advances our knowledge on just why current treatments for glioblastoma have a low success rate and opens the door to new non-localized approaches in tackling this deadly brain cancer.
—New Atlas, 6 Oct. 2025
Given the January 2020 death of drummer/lyricist Neil Peart from glioblastoma, it’s been assumed that a Rush live reunion wasn’t in the cards.
—Annie Zaleski, Variety, 6 Oct. 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 24 Oct. 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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