Dictionary.com

ethyl

[ eth-uhl ]
/ ˈɛθ əl /
Save This Word!

adjective
Chemistry. containing the ethyl group, as ethyl ether, C4H10O.
noun
a type of antiknock fluid, containing tetraethyl lead and other ingredients for a more even combustion.

COMPARE MEANINGS

Click for a side-by-side comparison of meanings. Use the word comparison feature to learn the differences between similar and commonly confused words.
QUIZ
WILL YOU SAIL OR STUMBLE ON THESE GRAMMAR QUESTIONS?
Smoothly step over to these common grammar mistakes that trip many people up. Good luck!
Question 1 of 7
Fill in the blank: I can’t figure out _____ gave me this gift.

Origin of ethyl

From German Ethyl, coined by J. von Liebig in 1834; see ether, -yl

OTHER WORDS FROM ethyl

non·eth·yl, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use ethyl in a sentence

British Dictionary definitions for ethyl

ethyl
/ (ˈiːθaɪl, ˈɛθɪl) /

noun
(modifier) of, consisting of, or containing the monovalent group C 2 H 5-ethyl group or radical

Derived forms of ethyl

ethylic (ɪˈθɪlɪk), adjective

Word Origin for ethyl

C19: from eth (er) + -yl
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

Scientific definitions for ethyl

ethyl
[ ĕthəl ]

The radical C2H5, derived from ethane.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
FEEDBACK