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n. A poisonous substance, especially a protein, that is produced by living cells or organisms and is capable of causing disease when introduced into the body tissues but is often also capable of inducing neutralizing antibodies or antitoxins.

n. A toxic or poisonous substance produced by the biological processes of biological organisms.

n. A poisonous product formed by an organism, such as a pathogenic bacterium, a plant or an animal, usually having a high molecular weight, often a protein or a polysaccharide, but occasionally a low-molecular weight agent such as tetrodotoxin.

n. A specific poison of albuminous character, immunization with which leads to the production of a specific antitoxin.

n. Any toxic ptomaine.

n. a poisonous substance produced during the metabolism and growth of certain microorganisms and some higher plant and animal species

"Today the term toxin is used to described anything that is foreign or poisonous to the body."

toxine   

toxicant    poisonous substance    poison   

toxic    poison   

exotoxin    cytotoxin    ricin    hepatotoxin    bacterial toxin    neurotoxin    animal toxin    endotoxin    nephrotoxin    plant toxin   

antitoxin    coxon    oxen   

contaminant    pesticide    spore    chemical    contamination    virus    neurotoxin    bacteria    poison    hormone