chemotherapy

/K IY0 M OW0 TH EH1 R AH0 P IY0/
noun
  1. 1

    Any chemical treatment intended to be therapeutic with respect to a disease state.

  2. 2

    (most common usage) chemical treatment to kill or halt the replication and/or spread of cancerous cells in a patient.

Source: https://en.wiktionary.org/wiki/chemotherapy