ac·ti·no·my·cin ( k t -n -m  s n)n. Any of various red, often toxic, polypeptide antibiotics obtained from soil bacteria. |
actinomycin [ˌæktɪnəʊˈmaɪsɪn]
n
(Medicine / Pharmacology) any of several toxic antibiotics obtained from bacteria of the genus Streptomyces, used in treating some cancers; the most commonly used is dactinomycin (actinomycin D)
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| Noun | 1. | actinomycin - any of various red antibiotics isolated from soil bacteria antibiotic, antibiotic drug - a chemical substance derivable from a mold or bacterium that can kill microorganisms and cure bacterial infections; "when antibiotics were first discovered they were called wonder drugs" |
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