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acyl

[ as-il, -eel ]
/ ˈæs ɪl, -il /
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adjective Chemistry.
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. 2023

British Dictionary definitions for acyl

acyl
/ (ˈeɪsaɪl) /

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

Word Origin for acyl

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

Scientific definitions for acyl

acyl
[ ăsəl ]

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