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A toxin that has been treated (commonly with formaldehyde) so as to destroy its toxic property but retain its antigenicity, that is, its capability of stimulating the production of antitoxin antibodies and thus of producing an active immunity. For specific toxoids, see entries under vaccine
Synonym(s): anatoxin
[toxin + G. eidos, resemblance]
Farlex Partner Medical Dictionary © Farlex 2012


A weakened bacterial toxin.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012


(an″ă-tok′sĭn) [ ana- + toxin]
1. Toxoid.
2. A powerful nerve toxin produced by certain blue-green algae.
anatoxic (-toks′ĭk), adjective
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References in periodicals archive ?
flos-aquae and anatoxin-a used in the experiments were determined from the results of preliminary experiments.
flos-aquae or anatoxin-a was determined by comparing across temperatures the reproductive rate in the experimental treatment as a fraction of that in the control treatment.
The effect of anatoxin-a concentration on reproduction in A.
girodi was significantly more sensitive to anatoxin-a at the highest temperature [ILLUSTRATION FOR FIGURE 1C OMITTED].