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 (flo͝or′ə-fôr′, flôr′- )
1. A fluorochrome that is conjugated with a protein or other macromolecule and used as a probe or assay.
2. Any of various chemical groups or structural domains that are responsible for the fluorescent properties of a substance.

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.


(Chemistry) a chemical group responsible for fluorescence
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
Nitrophenol can be confirmed either visually on the basis of a yellow color or by optical spectrometry at its absorption peak of 420 nm.
We found that the absorption peak moves in the direction in which the wavelength becomes larger (red-shift, corresponding to an increase in wavelength) as the dielectric constant increases.
New absorption peak appears at 1720 [cm.sup.-1] on the spectral curve of asphalt in each ageing or recycling cycle, owing to carbonyl group produced in the aged asphalt.
A strong absorption peak between 200 nm and 400 nm was clearly observed which confirmed the presence of Al nano particles.
Below 220 K, an absorption peak appears around 2.08 eV that can be related to Pr + direct absorption.
The spectral features of mixture with weight ratios ranging from 0% to 25% w/w are dominated by the strong absorbance of rice powder, and no obvious absorption peak at 1.15 THz is observed.
For Au (5 mol.%) doped Ce[O.sub.2], a broad absorption peak was observed at approximately 530 nm, which was attributed to the surface plasmon resonance absorption of Au nanoparticles [30].
The hydroxyl absorption peak from protein, nucleic acid, and grease is located at 3327 [cm.sup.-1] with a similar intensity.
Figure 6 shows a strong absorption peak at 3296 [cm.sup.-1] which indicates presence of carboxylic groups.
Both the PbS and CdS were incorporated with indium (In-PbS/In-CdS), not only increased the light absorption in the visible range, and an absorption peak has emerged in the near-infrared portion.
Based on the index results obtained for bandwidth and absorption peak of various samples of transformer oil we can indirectly determine the level of degradation of transformer oil.