Definition of: chemotherapy

(kem′ō·ther′ə·pē) noun Med.
The treatment of diseases by the chemical disinfection of affected organs and tissues, especially through the use of synthetic drugs whose action is specific against certain pathogenic micro–organisms but non–toxic to the patient. Also chem′o·ther′a·peu′tics.
—chem′o·ther′a·peu′tic adjective
—chem′o·ther′a·pist noun