1. a toxic compound produced by bacteria during the decomposition of organic matter, especially protein
Usage: scientific; often used in the context of food poisoning

Examples

• The spoiled meat contained dangerous ptomaines that could cause severe illness.
• Food safety inspectors test for ptomaine contamination in restaurants.
• Ptomaine poisoning was once thought to be the main cause of food-related illness.
• The laboratory identified several ptomaines in the decomposing fish sample.
• Proper refrigeration prevents the formation of ptomaines in perishable foods.
• Scientists studied the chemical structure of various ptomaines found in rotting vegetables.