ciguatoxin

noun
ci·​gua·​tox·​in | \ ˈsē-gwə-ˌtäk-sən, ˈsig-wə- \

Medical Definition of ciguatoxin

: a potent heat-stable neurotoxin that is produced by a marine dinoflagellate (Gambierdiscus toxicus) and causes ciguatera poisoning in those who eat fish (as barracuda or amberjack) in which toxic levels of it have become concentrated also : any of several related neurotoxins causing ciguatera

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