an·a·tox·in

[an-uh-tok-sin]
noun

Origin:
1920–25; ana- + toxin

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Based on the Random House Dictionary, © Random House, Inc. 2013.
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WordNet
anatoxin

noun
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" 
WordNet® 3.0, © 2006 by Princeton University.
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00:10
Anatoxin is always a great word to know.
So is doohickey. Does it mean:
a chattering or flighty, light-headed person.
a gadget; dingus; thingumbob.
Example sentences
Anatoxin-a is capable of eliciting the release of neurotransmitters from presynaptic neuromuscular and brain cell terminals.
Etiology of the kills makes anatoxin-a suspect but aqueous samples have all been below detectable limits.
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