[ meth-uhl ]

  1. containing the methyl group. Abbreviation: Me

Origin of methyl

First recorded in 1835–45; by back formation from methylene

Other words from methyl

  • me·thyl·ic [me-thil-ik, muh-], /mɛˈθɪl ɪk, mə-/, adjective

Other definitions for methyl- (2 of 2)


  1. a combining form occurring in the names of chemical compounds in which the methyl group is present: methylamine. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use methyl in a sentence

British Dictionary definitions for methyl


/ (ˈmiːθaɪl, ˈmɛθɪl) /

  1. (modifier) of, consisting of, or containing the monovalent group of atoms CH 3

  2. an organometallic compound in which methyl groups are bound directly to a metal atom

Origin of methyl

C19: from French méthyle, back formation from methylene

Derived forms of methyl

  • methylic (məˈθɪlɪk), adjective

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 methyl


[ mĕthəl ]

  1. The radical CH3, derived from methane.

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.