onychocryptosis

noun
on·​y·​cho·​cryp·​to·​sis | \ ˌän-i-kō-ˌkrip-ˈtō-səs How to pronounce onychocryptosis (audio) \
plural onychocryptoses\ -​ˌsēz How to pronounce onychocryptoses (audio) \

Medical Definition of onychocryptosis

: onyxis