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or tetraethyl lead

[te-truh-eth-uh l-led] /ˌtɛ trəˌɛθ əlˈlɛd/
noun, Chemistry.
a colorless, oily, water-insoluble, poisonous liquid, (C 2 H 5) 4 Pb, used as an antiknock agent in gasoline.
Also called lead tetraethyl, TEL.
Origin of tetraethyllead
First recorded in 1920-25; tetraethyl + lead2 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for tetraethyl lead

tetraethyl lead

/ˌtɛtrəˈiːθaɪl lɛd/
a colourless oily insoluble liquid used in petrol to prevent knocking. Formula: Pb(C2H5)4 Systematic name lead tetraethyl
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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tetraethyl lead in Medicine

tetraethyl lead tet·ra·eth·yl lead or tet·ra·eth·yl·lead (tět'rə-ěth'əl-lěd')
A colorless, poisonous, oily liquid used in gasoline for internal-combustion engines as an antiknock agent.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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tetraethyl lead in Science
tetraethyl lead
A colorless, poisonous, oily liquid, formerly in wide use as an antiknock agent in gasoline for internal-combustion engines. Chemical formula: C8H20Pb.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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