■ noun
1》 the science or practice of the diagnosis, treatment, and prevention of disease (in technical use often taken to exclude surgery).
2》 a drug or other preparation for the treatment or prevention of disease.
3》 (among North American Indians and some other peoples) a spell, charm, or fetish believed to have healing or magical power.
Phrases
give someone a dose (or taste ) of their own ~ give someone the same bad treatment that they have given to others.
take one's ~ submit to punishment as being deserved.
Origin
ME: via OFr. from L. medicina , from medicus 'physician'.