tetraethyl lead

British

/ ˌtɛtrəˈiːθaɪl lɛd /

noun

Systematic name: lead tetraethyl. a colourless oily insoluble liquid used in petrol to prevent knocking. Formula: Pb(C 2 H 5 ) 4

"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

tetraethyl lead Scientific

/ tĕt′rə-ĕth′əl /

A colorless, poisonous, oily liquid, formerly in wide use as an antiknock agent in gasoline for internal-combustion engines. Chemical formula: C ₈ H ₂₀ Pb.

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023