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n. Chemistry
An organic group having the general formula RCO-, derived from an organic acid.

[ac(id) + -yl.]


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


(ˈæs ɪl, -il)

the univalent group RCO–, where R is any organic group attached to one bond of the carbonyl group.
[1895–1900; < German]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.acyl - any group or radical of the form RCO- where R is an organic group; "an example of the acyl group is the acetyl group"
acetyl, acetyl group, acetyl radical, ethanoyl group, ethanoyl radical - the organic group of acetic acid (CH3CO-)
chemical group, radical, group - (chemistry) two or more atoms bound together as a single unit and forming part of a molecule
foryml - (chemistry) the negative univalent acyl radical CHO that occurs in aldehydes
References in periodicals archive ?
Personal Wash Cleanser Comprising Defined Alkanoyl Compounds, Defined Fatty Acyl Isethionate Surfactant Product and Skin or Hair Benefit Agent Delivered in Floes Upon Dilution," US Patent Application 20110245125, Oct h, 2011, assignee Conopco, Inc, dba Unilever,
Propionyl- and n-butyryl-thiocholines are much more susceptible to enzymatic hydrolysis than the branched alkanoyl thiocholines, as shown in Table 2.