from The Century Dictionary.

  • noun In chem., a suffix commonly used with radicals, denoting the fundamental part, the origin: as, methyl, CH3, is the fundamental radical of wood alcohol, CH3OH, methylic ether, (CH3)2O, methyl anime, CH3NH2, etc.

from the GNU version of the Collaborative International Dictionary of English.

  • (Chem.) A suffix used as a characteristic termination of chemical radicals; as in ethyl, carbonyl, hydroxyl, etc.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • suffix organic chemistry A univalent radical or functional group formed from a given molecule. Thus "propyl" from propane, "benzyl" from benzene, and so forth.


from Wiktionary, Creative Commons Attribution/Share-Alike License

Back-formation from methyl, itself a back-formation from methylene


Help support Wordnik (and make this page ad-free) by adopting the word -yl.


    Sorry, no example sentences found.


Log in or sign up to get involved in the conversation. It's quick and easy.