medulloblastoma
noun
a rapidly growing brain tumour that develops in children and is responsive to radiotherapy
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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medulloblastoma
[mĕd′l-ō-blă-stō′mə, mĭ-dŭl′ō-]
n.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.