dactinomycin

[ dak-tuh-noh-mahy-sin ]

noun

, Pharmacology.

1. a cytotoxic polypeptide, C 62 H 86 N 12 O 16 , isolated from the bacterium Streptomyces parvullus, used in the treatment of certain cancers.

Word History and Origins

Origin of dactinomycin¹

First recorded in 1965–70; reversal of actinomycin D; actinomycin