tetraethyllead
or tet·raeth·yl lead
[ te-truh-eth-uh l-led ]
/ ˌtɛ trəˌɛθ əlˈlɛd /
noun Chemistry.
a colorless, oily, water-insoluble, poisonous liquid, (C2H5)4Pb, used as an antiknock agent in gasoline.
Also called
lead tetraethyl,
TEL
Origin of tetraethyllead
First recorded in 1920–25;
tetraethyl +
lead2