glio·​blas·​to·​ma | \ ˌglī-ō-ˌbla-ˈstō-mə How to pronounce glioblastoma (audio) \
variants: or less commonly glioblastoma multiforme \ -​ˌməlt-​ə-​ˈfȯrm-​ē How to pronounce glioblastoma multiforme (audio) \
plural glioblastomas also glioblastomata\ ˌglī-​ō-​ˌbla-​ˈstō-​mə-​tə How to pronounce glioblastomata (audio) \ or glioblastomas multiforme or glioblastoma multiformes

Definition of glioblastoma

: 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

In 2010, Reyna's older brother Jack (11) was diagnosed with stage four glioblastoma - a rare and aggressive condition which almost exclusively affects old men., "Gio Reyna: 7 Things to Know About BVB's Pulisic Successor Who's Likened to Juve Icon David Trezeguet," 16 July 2019 Senator John McCain’s battle with glioblastoma put the national spotlight on this deadly disease in 2018. Trihealth,, "Advancing care for brain cancer," 4 June 2019 The cause was a brain tumor known as a glioblastoma, which was diagnosed in July 2017. Siobhan Hughes, WSJ, "Sen. John McCain, a War Hero Who Became a Political Heavyweight, Dies at 81," 25 Aug. 2018 Read Cindy's full statement, issued Thursday, to The Arizona Republic: Saturday marks the one-year anniversary of the surgery that discovered my husband had a primary brain tumor known as a glioblastoma. Yvonne Wingett Sanchez, azcentral, "A year after John McCain's cancer diagnosis, Cindy McCain expresses gratitude to caregivers," 13 July 2018 His friend Scott Patrick was diagnosed with glioblastoma, a deadly brain cancer, and asked Kline to run the race to raise money for cancer research. Danielle Garrand, CBS News, "This man wanted to share his love of running with people who have disabilities. Now, he's finished 45 marathons with them.," 26 June 2019 While reading about Senator John McCain, who had been diagnosed with glioblastoma (an aggressive form of brain cancer), she was struck by the lack of progress toward a cure. Samantha Leach, Glamour, "Meet Glamour's 2019 College Women of the Year," 11 June 2019 The most common is glioblastoma, an aggressive brain cancer that invades normal brain tissue. Trihealth,, "Advancing care for brain cancer," 4 June 2019 Breakefield, who received one of the grants, is examining how RNA released by glioblastoma, a highly aggressive form of brain cancer, manipulates surrounding cells to support its own growth. Quanta Magazine, "RNA’s Secret Life Outside the Cell," 8 Nov. 2013

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'glioblastoma.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of glioblastoma

circa 1923, in the meaning defined above

History and Etymology for glioblastoma

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

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Dictionary Entries near glioblastoma


glint o' gold






Statistics for glioblastoma

Last Updated

14 Aug 2019

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Time Traveler for glioblastoma

The first known use of glioblastoma was circa 1923

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More Definitions for glioblastoma


glio·​blas·​to·​ma | \ ˌglī-(ˌ)ō-bla-ˈstō-mə How to pronounce glioblastoma (audio) \
plural glioblastomas also glioblastomata\ -​mət-​ə How to pronounce glioblastomata (audio) \

Medical Definition of glioblastoma

: 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, 2 Jan. 2009

called also glioblastoma multiforme

Comments on glioblastoma

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a period when something is suspended

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