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Pronunciation: sak'si-tok'sin

Definition: A potent neurotoxin found in shellfish, such as the mussel or the clam (and sometimes the pufferfish, Sphoerides nephelus), produced by the dinoflagellate Gonyaulax catenella, which is ingested by the shellfish; the cause of cases of poisoning from eating the California sea mussel (Mytilus californianus), scallop, and the Alaskan butterclam (Saxidomus giganteus).

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.