spondylosis

noun
spon·​dy·​lo·​sis | \ ˌspän-də-ˈlō-səs How to pronounce spondylosis (audio) \
plural spondyloses\ -​ˌsēz How to pronounce spondyloses (audio) \ or spondylosises

Medical Definition of spondylosis

: any of various degenerative diseases of the spine