SAXITOXIN

[sax.i.tox.in] n [saxi- (fr. NL Saxidomus giganteus, species of butter clam from which it is isolated) + toxin] (1962): a potent nonprotein neurotoxin that originates in dinoflagellates (genus Gonyaulax) found in red tides and that sometimes occurs in and renders toxic normally edible mollusks which feed on them