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
Michael Bolton, who was diagnosed in December 2023 with glioblastoma — the most aggressive and fastest-growing form of brain cancer — first exhibited signs that something was amiss the month prior, according to his daughters.
—
Melissa Rudy, FOXNews.com, 3 May 2025
During an emotional cover story interview with PEOPLE, the two-time Grammy winner revealed that he was diagnosed with glioblastoma in December 2023 and, since beginning treatment, has experienced deficits with his short-term memory, speech, and mobility.
—Shania Russell, EW.com, 30 Apr. 2025
Bolton was diagnosed with glioblastoma in December 2023.
—Brian Niemietz, New York Daily News, 30 Apr. 2025
Different cancers, like breast, glioblastoma, and melanoma, also respond differently to cannabis treatments, highlighting the need for personalized cannabinoid therapies and more research into how cannabis affects specific cancer types.
—Dario Sabaghi, Forbes.com, 21 Apr. 2025
See All Example Sentences for glioblastoma
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Melissa Rudy, FOXNews.com, 3 May 2025
During an emotional cover story interview with PEOPLE, the two-time Grammy winner revealed that he was diagnosed with glioblastoma in December 2023 and, since beginning treatment, has experienced deficits with his short-term memory, speech, and mobility.
—Shania Russell, EW.com, 30 Apr. 2025
Bolton was diagnosed with glioblastoma in December 2023.
—Brian Niemietz, New York Daily News, 30 Apr. 2025
Different cancers, like breast, glioblastoma, and melanoma, also respond differently to cannabis treatments, highlighting the need for personalized cannabinoid therapies and more research into how cannabis affects specific cancer types.
—Dario Sabaghi, Forbes.com, 21 Apr. 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 11 May. 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
Love words? Need even more definitions?
Merriam-Webster unabridged
Share