chondrocalcinosis

noun

chon·​dro·​cal·​ci·​no·​sis ˌkän-drō-ˌkal-sə-ˈnō-səs 

plural chondrocalcinoses -ˈnō-ˌsēz 

: the abnormal deposition of calcium salts in cartilage (as of joints)

Chondrocalcinosis is the presence of linear, stippled calcification in joint cartilage. It is often found in association with pseudogout …

—Michael H. Ellman, The New England Journal of Medicine