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tetrachloromethane
tetrachord
tetracid
tetracyclic
tetracycline
tetrad
tetradactylous
tetradymite
tetraethyl lead
tetragon
tetragram
Tetragrammaton
tetrahedra
tetrahedrite
tetrahedron
tetrahydrocannabinol
tetrahydrothiophene
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tetraethyl lead

tet·ra·eth·yl lead [ tèttrə èth'l léd ]


noun 
Definition:
 
antiknock agent: a colorless, extremely poisonous, oily liquid. Use: gasoline antiknock agent now often restricted or banned because it produces air pollution and poisons catalytic converters. Pb(C2H5)4

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