onycholysis

noun
on·​y·​chol·​y·​sis | \ ˌän-ə-ˈkäl-ə-səs How to pronounce onycholysis (audio) \
plural onycholyses\ -​ˌsēz How to pronounce onycholyses (audio) \

Medical Definition of onycholysis

: a loosening of a nail from the nail bed beginning at the free edge and proceeding to the root

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one from the Upper Peninsula of Michigan

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