functional group

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functional group

n.
An atom or group of atoms, such as a carboxyl group, in an organic compound that defines the structure of a family of compounds and determines the properties of the family.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

functional group

n
(Chemistry) chem the group of atoms in a compound, such as the hydroxyl group in an alcohol, that determines the chemical behaviour of the compound
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

func′tional group`


n.
a group of atoms responsible for the characteristic behavior of the class of compounds in which the group occurs, as the hydroxyl group in alcohols.
[1935–40]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

functional group

The atom (or group of atoms) present in a molecule which determines the characteristic properties of that molecule.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited
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References in periodicals archive ?
Results: Compared with the normal renal function group and the slight decrease group, ACEIs and [beta]-blockers were less used in the moderate and severe decrease group, but diuretics and spironolactone were more used (P<0.05).
studied the relationship between T2DN and ApoE genotype and found that the ApoE [epsilon]4 allele frequency was significantly higher in stable renal function group (17.1%) than in the microalbuminuria group (8.9%) (P = 0.03); however, ApoE [epsilon]3 allele frequency was significantly higher in proteinuria group than in stable renal function group[29].
The patients were divided into splenectomy group (n = 9), normal splenic function group (n = 24), and hypersplenism group (n = 16).
He currently chairs the Historic Preservation Function Group for Henrico County Recreation and Parks and he has co-chaired or lead numerous other planning committees, including the Henrico Civil War Sesquicentennial Committee.
In addition, the secondary reaction equation is given to confirm the existence of other function group. Finally, the morphology of ETPI with different epoxy group content is analyzed using phase contrast microscope (PCM) and scanning electron microscopy (SEM).
Choose More Functions from the bottom of the list and navigate to the Logical Function group. Choose OR, and you will have a new Function Arguments dialog box for OR.
With adjustment for age (83.2 yr), mean DGI score was independently associated with level of cognitive function group (p < 0.01), sex (p < 0.01), and standing balance as measured by the number of completed mCTSIB conditions (p < 0.01).
Weekly working hours increase from 37.5 to 40 hours without an increase in pay, a new function group is created for secretaries (SC, in addition to AST and AD) and contract agents can be recruited for a maximum of six rather than three years.
High Cognitive Function Group Versus Low Cognitive Function Group