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tetramethyllead

[te-truh-meth-uh l-led] /ˌtɛ trəˌmɛθ əlˈlɛd/
noun, Chemistry
1.
a colorless liquid, (CH 3) 4 Pb, insoluble in water, slightly soluble in alcohol and benzene, used as an antiknock agent in gasoline.
Also called TML.
Origin
1960-1965
1960-65; tetra- + methyl + lead2
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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