acyl

acyl

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

Origin:
1895–1900; < German: an organic radical derived from an acid; see acid, -yl

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World English Dictionary
acyl (ˈeɪsaɪl)
 
n
1.  (modifier) of, denoting, or containing the monovalent group of atoms RCO-, where R is an organic group: acyl group or radical; acyl substitution
2.  an organometallic compound in which a metal atom is directly bound to an acyl group
 
[C20: from acid + -yl]

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American Heritage
Medical Dictionary

acyl ac·yl (ās'əl)
n.
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.
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American Heritage
Science Dictionary
acyl   (ās'əl)  Pronunciation Key 
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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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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