gliomatosis

noun
gli·​o·​ma·​to·​sis | \ glī-ˌō-mə-ˈtō-səs How to pronounce gliomatosis (audio) \
plural gliomatoses\ -​ˌsēz How to pronounce gliomatoses (audio) \

Medical Definition of gliomatosis

: a glioma with diffuse proliferation of glial cells or with multiple foci