名詞 chemotherapy:

1. the use of chemical agents to treat or control disease (or mental illness)

che.mo.ther.a.py

n.（名詞）
The treatment of cancer using specific chemical agents or drugs that are selectively destructive to malignant cells and tissues.
化學療法：用對癌變細胞和組織相對具有破壞性的某種試劑或藥品來治療癌癥的方法
The treatment of disease using chemical agents or drugs that are selectively toxic to the causative agent of the disease, such as a virus, bacterium, or other microorganism.
化學療法：使用對導致疾病的因素如病毒、細菌或其它微生物具有危害性的化學試劑或藥品來治療疾病的方法

【引伸】
che.mother.apeu.tic
che.mother.apeu.tically
adv.（副詞）
che.mother.apist
n.（名詞）