glioblastoma

noun

glio·​blas·​to·​ma ˌglī-ō-ˌbla-ˈstō-mə 

variants or less commonly glioblastoma multiforme

-ˌməlt-ə-ˈfȯrm-ē 

plural glioblastomas also glioblastomata ˌglī-ō-ˌbla-ˈstō-mə-tə  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

Andy’s diagnosis pulled her back overnight—a common reality for glioblastoma families, since the disease often forces patients to stop working. — Sydney Lake, Fortune, 3 July 2026

Cohen also directed viewers to the Kyra Fund, which supports glioblastoma research, and shared a link to the fundraiser. — Charlie Carballo, USA Today, 26 June 2026

Andy Cohen paid tribute to Kyra Samson, a production manager on Watch What Happens Live who died earlier this week after a glioblastoma diagnosis. — Marina Watts, Entertainment Weekly, 26 June 2026

On June 22, the New York Times best-selling author died at 48 following a more than two-year journey with glioblastoma, an aggressive form of brain cancer. — Jordana Comiter, PEOPLE, 23 June 2026

Word History

Etymology

New Latin, from glia glia + blast- + -oma

First Known Use

circa 1923, in the meaning defined above

Rhymes for glioblastoma

• ambystoma
• atheroma
• carcinoma
• coloboma
• granuloma
• haematoma
• hamartoma
• hemangioma
• hematoma
• hepatoma
• hybridoma
• melanoma

Medical 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

called also glioblastoma multiforme