In [ Medicine, Medical Treatment ] The therapeutic practise of diagnosing and treating injury or disease. A drug or nutrient preparation prescribed for the treatment, or prevention of injury or disease. More, the cause or causes of a [ Disease ] In a living thing, an abnormal condition that is not the direct result of physical injury. Diseases are structural or functional disorders. Medically, they may be classified as infectious (communicable and non-communicable), genetic, physiological deficiency-related. More or condition.