medicine [L, medicina, art of healing] , 1. a drug or a remedy for illness. 2. the art and science of the diagnosis, treatment, and prevention of disease and the maintenance of good health. −medical, adj. 3. the art or technique of treating disease without surgery. Two major divisions of medicine are academic medicine and clinical medicine. Kinds include environmental medicine, family medicine, forensic medicine, internal medicine, physical medicine, physical medicine and rehabilitation.