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exosphere
exospore
exostosis
exoteric
exothermic
exotic
exotic dancer
exotica
exotoxin
exotropia
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exotoxin

ex·o·tox·in [ èksō tóksin ] (plural ex·o·tox·ins)


noun 
Definition:
 
powerful soluble toxin produced by a bacterium: a highly potent soluble toxin produced by a bacterium and released into its infected host, often affecting the central nervous system. Exotoxins are produced in diphtheria, botulism, and tetanus, and are among the most potent known toxins.

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