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Meaning of dactinomycin

dac•ti•no•my•cin

Pronunciation: (dak"tu-nō-mī'sin), [key]
— n. Pharm.
  1. a cytotoxic polypeptide, CHNO, isolated from the bacterium Streptomyces parvullus, used in the treatment of certain cancers. Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.