me·​dul·​lo·​blas·​to·​ma | \ mə-ˌdə-lō-ˌbla-ˈstō-mə How to pronounce medulloblastoma (audio) \
plural medulloblastomas also medulloblastomata\ mə-​ˌdə-​lō-​ˌbla-​ˈstō-​mə-​tə How to pronounce medulloblastoma (audio) \

Definition of medulloblastoma

: a malignant tumor of the central nervous system arising in the cerebellum especially in children

Examples of medulloblastoma in a Sentence

Recent Examples on the Web Jojo’’ Hoskins, the family’s 2 ½ -year-old daughter, receives chemotherapy treatment at Seattle Children’s Hospital for medulloblastoma, a rare form of brain cancer. Dawn Gilbertson, USA TODAY, 8 Apr. 2020 According to Good Morning America, Zach Haas said his son, Wyatt Haas, had been feeling sick and having headaches before he was diagnosed with medulloblastoma on Nov. 15. Jason Duaine Hahn,, 19 Dec. 2019 He was diagnosed last month with medulloblastoma, a cancerous brain tumor. Meryl Kornfield, Washington Post, 18 Dec. 2019 The results showed medulloblastoma, a cancerous tumor the size of a baseball -- a fourth of Louie’s head by volume was a tumor. David Kiefer, Executive Editorial Producer,, 5 Dec. 2019 Gabe, a patient at St. Jude Children’s Research Hospital, was treated successfully for medulloblastoma, a cancerous tumor of the brain, in 2018. Rachel Desantis,, 25 Sep. 2019 Waters was diagnosed with medulloblastoma in February, the day after his third birthday., 1 Oct. 2019 Tara and Jarlath Waters learned in February that their son’s life was in jeopardy when he was diagnosed with medulloblastoma, a fast-growing tumor on his brain stem. Cathy Free, Washington Post, 5 Sep. 2019 The San Antonio girl was diagnosed with medulloblastoma more than two years ago and has been putting up a brave fight against the brain cancer. Vincent T. Davis,, 24 July 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'medulloblastoma.' 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 medulloblastoma

1925, in the meaning defined above

History and Etymology for medulloblastoma

New Latin, from medulla + -o- + blast- + -oma

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Time Traveler for medulloblastoma

Time Traveler

The first known use of medulloblastoma was in 1925

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Cite this Entry

“Medulloblastoma.” Dictionary, Merriam-Webster, Accessed 23 Jun. 2021.

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More Definitions for medulloblastoma


me·​dul·​lo·​blas·​to·​ma | \ mə-ˌdəl-ō-ˌblas-ˈtō-mə How to pronounce medulloblastoma (audio) \
plural medulloblastomas also medulloblastomata\ -​ˈtō-​mət-​ə How to pronounce medulloblastoma (audio) \

Medical Definition of medulloblastoma

: a malignant tumor of the central nervous system arising in the cerebellum especially in children

Other Words from medulloblastoma

medulloblastomatous \ -​ˈtō-​mət-​əs How to pronounce medulloblastoma (audio) \ adjective


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