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A potent neurotoxin, C11H17N3O8, found in many pufferfishes and certain other animals, including some salamanders and crabs.

[Shortening and alteration of New Latin Tetraodōn, pufferfish genus (Greek tetra-, tetra- + New Latin -odōn, -odon (so called because members of the genus have two upper and two lower teeth)) + toxin.]


(Zoology) a highly lethal neurotoxin found in certain puffer fish and in newts of the genus Taricha. Formula: C11H17N3O3
[C20: from New Latin Tetrodon (puffer fish genus name, from Greek tetra- fourfold + odont- tooth) + toxin]


(tɛˌtroʊ dəˈtɒk sɪn)

a neurotoxin, C11H17N3O3, occurring in a species of puffer fish: ingestion may be fatal.
[1910–15; < New Latin Tetrodo(n) genus name of the puffer fish + toxin]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.tetrodotoxin - a powerful neurotoxin found in the ovaries of pufferfish
blowfish, puffer, pufferfish, sea squab - delicacy that is highly dangerous because of a potent nerve poison in ovaries and liver
neurolysin, neurotoxin - any toxin that affects neural tissues
References in periodicals archive ?
Maculotoxin: a neurotoxin from the venom glands of the octopus Hapalochlaena maculosa identified as tetrodotoxin.