Noun nitrofurantoin has 1 sense
  1. nitrofurantoin, Macrodantin - derivative of nitrofuran used as an antibacterial medicine (trade name Macrodantin) effective against a broad range of Gram-positive and Gram-negative bacteria; used to treat infections of the urinary tract
    --1 is a kind of antibacterial, antibacterial drug, bactericide
    --1 has substances: nitrofuran
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