n.
Pronunciation: te- ˌ tr ō -d ə - ' täk-s ə n
Function: noun
Etymology: International Scientific Vocabulary tetrodo- (fr. New Latin Tetrodon, genus of tropical marine fishes) + toxin
Date: 1911
: a neurotoxin C 11 H 17 N 3 O 8 found especially in puffer fish that blocks nerve conduction by suppressing permeability of the nerve fiber to sodium ions