a light emitted by or as if by a substance heated to luminosity; incandescence.
brightness of color.
a sensation or state of bodily heat.
a warm, ruddy color of the cheeks.
warmth of emotion or passion; ardor.
verb (used without object)
to emit bright light and heat without flame; become incandescent.
to shine like something intensely heated.
to exhibit a strong, bright color; be lustrously red or brilliant.
(of the cheeks) to exhibit a healthy, warm, ruddy color.
to become or feel very warm or hot.
to show emotion or elation: to glow with pride.

before 1000; Middle English glowen (v.), Old English glōwan; akin to German glühen, Old Norse glōa

outglow, verb (used with object)
underglow, noun

9. flush, blush, redden. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
glow (ɡləʊ)
1.  light emitted by a substance or object at a high temperature
2.  a steady even light without flames
3.  brilliance or vividness of colour
4.  brightness or ruddiness of complexion
5.  a feeling of wellbeing or satisfaction
6.  intensity of emotion; ardour
7.  to emit a steady even light without flames
8.  to shine intensely, as if from great heat
9.  to be exuberant or high-spirited, as from excellent health or intense emotion
10.  to experience a feeling of wellbeing or satisfaction: to glow with pride
11.  (esp of the complexion) to show a strong bright colour, esp a shade of red
12.  to be very hot
[Old English glōwan; related to Old Norse glōa, Old High German gluoen, Icelandic glōra to sparkle]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Word Origin & History

O.E. glowan "to shine as if red-hot," from P.Gmc. base *glo- (cf. O.S. gloian, O.N. gloa, O.H.G. gluoen, Ger. glühen "to glow"), from PIE *ghlo-. First record of glow-worm is from c.1320.
Online Etymology Dictionary, © 2010 Douglas Harper
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Computing Dictionary

GLOW definition

A POP-11 variant with lexical scope.
Available from Andrew Arnblaster, Bollostraat 6, B-3140 Keerbergen, Belgium, for Mac or MS-DOS.
[Byte's UK edition, May 1992, p.84UK-8].

The Free On-line Dictionary of Computing, © Denis Howe 2010
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American Heritage
Abbreviations & Acronyms
gross lift-off weight
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Example sentences
Their device works by focusing pulses of laser light on the tooth, causing it
  to glow and release heat.
They can compost an elephant, fertilize an oak forest or light up the oceans in
  the eerie teal glow of bioluminescence.
Their energy causes certain elements in the ink to fluoresce, or glow.
Also making the target reflective would make if glow on radar.
Images for glow
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