ciguatoxin
noun
ci·gua·tox·in
ˈsē-gwə-ˌtäk-sən
ˈsig-wə-
: 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
Cite this Entry
“Ciguatoxin.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/ciguatoxin. Accessed 8 Jul. 2026.
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