thiotepa: an antineoplastic drug used to treat certain malignancies
antineoplastic: any of several drugs that control or kill neoplastic cells; used in chemotherapy to kill cancer cells; all have unpleasant side effects that may include nausea and vomiting and hair loss and suppression of bone marrow function
pull chain: a chain (usually with a handle at the end) that is pulled in order to operate some mechanism (e.g. to flush a toilet)