Medical Dictionary

phacomatosis

noun phaco·ma·to·sis \ˌfak-ō-mə-ˈtō-səs\
plural phaco·ma·to·ses \-ˌsēz\

Medical Definition of PHACOMATOSIS

:  any of a group of hereditary or congenital diseases (as neurofibromatosis) affecting the central nervous system and characterized by the development of hamartomas

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