lipofuscinosis

noun
li·​po·​fus·​cin·​o·​sis | \ -ˌfəs-ə-ˈnō-səs How to pronounce lipofuscinosis (audio) , -ˌfyüs- How to pronounce lipofuscinosis (audio) \
plural lipofuscinoses\ -​ˌsēz How to pronounce lipofuscinoses (audio) \

Medical Definition of lipofuscinosis

: a storage disease (as Batten disease) marked by abnormal accumulation of lipofuscin in tissues especially of the brain