单词 | polymyxin |
释义 | Word Frequency polymyxin(ˌpɒlɪˈmɪksɪn) noun any of several polypeptide antibiotics active against Gram-negative bacteria, obtained from the soil bacterium Bacillus polymyxa Word origin C20: from New Latin Bacillus polymyxa; see poly-, myxo-, -in |
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