1a chronic disease of elderly people characterized by alteration of bone tissue, especially in the spine, skull, or pelvis, sometimes causing severe pain; osteitis deformans.
2an inflammation of the nipple associated with breast cancer.
Origin:
late 19th century: named after Sir James Paget (1814–99), English surgeon
Paget's disease in other Oxford dictionaries
Definition of Paget's disease in the US English dictionary