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a suffix used in the names of radicals:
Origin of -yl
< French -yle < Greek hȳ́lē matter, wood, substance Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for yl
Historical Examples
  • And fynally he changed the yl ignorance feblenes and negligence of youth vnto dylygence, strength and vertue.

    The Ship of Fools, Volume 1 Sebastian Brandt
  • yl is further represented as the god of the winds and storms, and of the thunder and lightning.

    American Hero-Myths Daniel G. Brinton
British Dictionary definitions for yl


(in chemistry) indicating a group or radical: methyl, carbonyl
Word Origin
from Greek hulē wood, matter
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
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Word Origin and History for yl


chemical suffix used in forming names of radicals, from French -yle, from Greek hyle "wood," also "building stuff, raw material" (from which something is made).

It was introduced into chemical nomenclature by Liebig and Wohler when, in 1832, they used the term benzoyle for the radical which appeared to be the "essential material" of benzoic acid and related compounds. [Flood]

Online Etymology Dictionary, © 2010 Douglas Harper
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yl in Medicine

-yl suff.
A monovalent organic acid radical: carbonyl.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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yl in Science
A suffix used to form the chemical names of organic compounds when they are radicals (parts of larger compounds), such as ethyl and phenyl.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Related Abbreviations for yl


young lady (shortwave transmission)
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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