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[te-troh-duh-tok-sin] /tɛˌtroʊ dəˈtɒk sɪn/
noun, Pharmacology.
a neurotoxin, C 11 H 17 N 3 O 3 , occurring in a species of puffer fish: ingestion of the toxin is usually rapidly fatal due to heart failure or asphyxiation; used experimentally to block impulse conduction potential in excitable cells.
Origin of tetrodotoxin
1910-15; < New Latin Tetrodo(n) genus name of the puffer fish (see tetr-, -odont) + toxin Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for tetrodotoxin


a highly lethal neurotoxin found in certain puffer fish and in newts of the genus Taricha. Formula: C11H17N3O3
Word Origin
C20: from New Latin Tetrodon (puffer fish genus name, from Greek tetra- fourfold + odont- tooth) + toxin
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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tetrodotoxin in Medicine

tetrodotoxin te·tro·do·tox·in (tě-trō'də-tŏk'sĭn)
A potent neurotoxin, found in many puffer fish and certain newts.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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