Merriam-Webster Logo
SINCE 1828
Menu
×

tetraethyl lead

noun tet·ra·eth·yl lead \ ˌte-trə-ˌe-thəl-ˈled \

Definition of tetraethyl lead

: a heavy oily poisonous liquid Pb(C2H5)4 used especially formerly as an antiknock agent

See tetraethyl lead defined for kids

First Known Use of tetraethyl lead

1923

in the meaning defined above

See Words from the same year
NEW! Time Traveler

Medical Dictionary

tetraethyl lead

noun tet·ra·eth·yl lead \ ˌte-trə-ˌeth-əl-ˈled \

medical Definition of tetraethyl lead

: a heavy oily poisonous liquid Pb(C2H5)4 used as an antiknock agent in gasoline — called also lead tetraethyl

Learn More about tetraethyl lead

  1. Britannica.com: Encyclopedia article about tetraethyl lead

Seen and Heard

What made you want to look up tetraethyl lead? Please tell us where you read or heard it (including the quote, if possible).

show hide

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

jabberwocky

play

meaningless speech or writing

Get Word of the Day daily email!

TRENDING NOW

  1. insubordinate 'disobedient to authority'

  2. promulgate 'to make known by open declaration'

  3. epochal 'momentous or unparalleled'

  4. clemency 'merciful treatment of someone who could be given harsh punishment'

  5. suborn 'to induce to commit perjury'

SEE ALL

BROWSE DICTIONARY

tetraethyl lead

Test Your Vocabulary

Name More Food!

  • red-fruit
  • Name that Fruit!
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Words at Play

Ask the Editors

Word Games