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acyl

[as-il, -eel]
adjective Chemistry.
  1. containing the acyl group.
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Origin of acyl

1895–1900; < German: an organic radical derived from an acid; see acid, -yl
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for acyl

acyl

noun
  1. (modifier) of, denoting, or containing the monovalent group of atoms RCO-, where R is an organic groupacyl group or radical; acyl substitution
  2. an organometallic compound in which a metal atom is directly bound to an acyl group
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Word Origin

C20: from acid + -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
acyl in Medicine

acyl

(ăs′əl)
n.
  1. A organic radical having the general formula RCO, derived from the removal of a hydroxyl group from an organic acid.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
acyl in Science

acyl

[ăs′əl]
  1. An organic compound containing the group RCO, where R is a halogen. Acyls are formed from organic acids by replacing the hydroxyl group (OH) within the carboxyl group (COOH) with a halogen. For example, acetyl chloride (CH3COCl) is formed by replacing the hydroxyl group of acetic acid (CH3COOH) with a chlorine atom. The names of acyls are formed by replacing the suffix -ic of the acid's name with -yl.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.