Medical Dictionary


noun ac·ti·no·my·ce·tin \-ˌmī-ˈsēt-ən\

Medical Definition of actinomycetin

  1. :  a bacteriolytic fluid substance that is obtained from a soil bacterium of the genus Streptomyces (S. albus) and that lyses various bacteria (as living streptococci or heat-killed colon bacilli)

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