[ as-il, -eel ]
/ ˈæs ɪl, -il /
containing the acyl group.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for acyl
/ (ˈeɪsaɪl) /
(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
Medicine definitions for acyl
[ ăs′əl ]
A organic radical having the general formula RCO, derived from the removal of a hydroxyl group from an organic acid.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Science definitions for acyl
[ ăs′əl ]
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.