Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

tetramethyllead

play
noun tet·ra·meth·yl·lead \ˌte-trə-ˌme-thəl-ˈled\

Definition of tetramethyllead

  1. :  a volatile poisonous liquid Pb(CH3)4 used especially formerly as an antiknock agent



1964

First Known Use of tetramethyllead

1964


Seen and Heard

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

WORD OF THE DAY

immature or lacking adult sophistication

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image567572573

Which of these is a synonym of unctuous?

maudlin angry prompt oily
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

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

TAKE THE QUIZ