hemangiomatosis
noun
he·man·gi·o·ma·to·sis
variants:
or chiefly British haemangiomatosis \ -jē-ˌō-mə-ˈtō-səs 
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plural hemangiomatoses\ -ˌsēz
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Medical Definition of hemangiomatosis
: a condition in which hemangiomas are present in several parts of the body