It is the science that is dedicated to the study and treatment of different diseases. There are Human Medicine (for people) and veterinary medicine (for animals). In Colombia we also call medicine to a remedy or medicine, which is what is taken or used to treat a disease.
1º_ Science that studies diseases, especially human ones, to prevent them, cure them and rehabilitate patients. See anatomy, physician, suffix -ina. 2º_ It is also said of the drug, of the topical used as a remedy.