ˌ ̷ ̷ ̷ ̷ at chemo- + noun
Etymology: International Scientific Vocabulary chem- + -therapy; originally formed as German chemotherapie; chemotherapeutics, from chem- + therapeutics; chemotherapeusis, New Latin, from chem- + therapeusis
: the prevention or treatment of especially infectious disease in man, animals, or plants by the use of chemical agents