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[uh-seet-l, uh-set-l, as-i-tl] /əˈsit l, əˈsɛt l, ˈæs ɪ tl/
adjective, Chemistry
containing the acetyl group.
Origin of acetyl
1860-65; acet- + -yl Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for acetyl
  • It can modify a protein by removing acetyl groups, so, it's so called deacetylate.
  • The addition of a little acetyl group to proteins seems to have a huge effect on many processes in the body.
British Dictionary definitions for acetyl


/ˈæsɪˌtaɪl; əˈsiːtaɪl/
(modifier) of, consisting of, or containing the monovalent group CH3CO-: acetyl group or radical
Derived Forms
acetylic (ˌæsɪˈtɪlɪk) adjective
Word Origin
C19: from acet(ic) + -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
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acetyl in Medicine

acetyl a·ce·tyl (ə-sēt'l, ās'ĭ-tl)
The acetic acid radical CH3CO.

ac'e·tyl'ic (ās'ĭ-tĭl'ĭk) adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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acetyl in Science
  (ə-sēt'l, ās'ĭ-tl)   
The radical CH3CO, derived from acetic acid.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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