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a bacterial toxin that has been weakened for use in inoculationsa deadly neurotoxin produced by a species of cyanobacteria and found in both marine and freshwater environments
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|Noun||1.||anatoxin - a bacterial toxin that has been weakened until it is no longer toxic but is strong enough to induce the formation of antibodies and immunity to the specific disease caused by the toxin; "diphtheria toxoid"|
bacterial toxin - any endotoxin or exotoxin formed in or elaborated by bacterial cells
antigen - any substance (as a toxin or enzyme) that stimulates an immune response in the body (especially the production of antibodies)