actinomycin definition

  • noun:
    • some of numerous red, frequently poisonous, polypeptide antibiotics obtained from soil bacteria.
    • any one of a class of toxic polypeptide antibiotics present in earth germs of genus Streptomyces.
    • some of numerous red antibiotics separated from earth germs with a three-ring heterocyclic nucleus with an attached peptide string.
    • any of different red antibiotics isolated from soil germs

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