/keuh poh"seez, kap"euh-/ , Pathol.
a cancer of connective tissue characterized by painless, purplish-red to brown plaquelike or pimply lesions on the extremities, trunk, or head, and sometimes involving the lungs, viscera, etc., occurring in a mild form among older men of certain Mediterranean and central African populations and in a more virulent form among persons with AIDS.
[ after Hungarian dermatologist Moritz Kaposi, or Moriz Kohn (1837-1902), who described it in 1872 ]