Actinomycin

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  actinomycin \actinomycin\ n. [From actinomyces, the genus of the
     organism in which they were first found.]
     1. any of various red antibiotics isolated from soil bacteria
        with a three-ring heterocyclic nucleus with an attached
        peptide chain.
  


     Note: Actinomycin D is the most well-known and has been used
           to treat certain tumors. They act by binding to DNA and
           inhibiting the transcription of RNA. Their binding to
           DNA has been much studied.
  
     Syn: actinomycin {actinomycin C} {actinomycin F1}
          {actinomycin D}
          [WordNet 1.5]

From WordNet (r) 2.0 [wn]:

  actinomycin
       n : any of various red antibiotics isolated from soil bacteria