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Meaning of tetrodotoxin

te•tro•do•tox•in

Pronunciation: (te-trō"du-tok'sin), [key]
— n. Pharm.
  1. a neurotoxin, CHNO, 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.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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