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tetraethyllead

[te-truh-eth-uh l-led] /ˌtɛ trəˌɛθ əlˈlɛd/
noun, Chemistry
1.
a colorless, oily, water-insoluble, poisonous liquid, (C 2 H 5) 4 Pb, used as an antiknock agent in gasoline.
Also, tetraethyl lead.
Also called lead tetraethyl, TEL.
Origin
1920-1925
1920-25; tetraethyl + lead2
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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