'chemotherapy' definitions:

Definition of 'chemotherapy'

(from WordNet)
noun
The use of chemical agents to treat or control disease (or mental illness)

Definition of 'chemotherapy'

From: GCIDE
  • chemotherapy \chemotherapy\ n. the use of chemical agents to treat or control disease (or mental illness); -- also used especially in reference to the use of chemicals to treat cancer. [WordNet 1.5 +PJC]