Noun ptomaine has 2 senses
  1. ptomaine, ptomain - any of various amines (such as putrescine or cadaverine) formed by the action of putrefactive bacteria
    --1 is a kind of amine, aminoalkane
    --1 has particulars: putrescine; cadaverine
  2. ptomaine, ptomaine poisoning - a term for food poisoning that is no longer in scientific use; food poisoning was once thought to be caused by ingesting ptomaines
    --2 is a kind of food poisoning, gastrointestinal disorder
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