The poisons produced by certain microorganisms. They are products of cell metabolism. The symptoms of bacterial diseases, such as diphtheria, tetanus, botulism, and staphylococcal food poisoning, are caused by toxins.
Poisonous substances, especially proteins, that are produced by living cells or organisms and are capable of causing disease or inducing neutralizing antibodies or antitoxins when introduced into the body tissues. Reference: L1
Chemical or natural substances that can cause harmful effects on humans; toxins include heavy metals such as cadmium, lead, and mercury, as well as organic compounds like petroleum products, polychlorinated biphenyls (PCBs), and polynuclear aromatic hydrocarbons (PAHs)
Poisons that are produced by microorganisms, carried by fish or released by plants. Examples: Botulism caused by the toxin from Clostridium botulinum, scombroid poisoning from the naturally occurring scombroid toxin in some improperly refrigerated fish, such as mackerel and tuna.