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afterglow

[af-ter-gloh, ahf-] /ˈæf tərˌgloʊ, ˈɑf-/
noun
1.
the glow frequently seen in the sky after sunset; afterlight.
2.
a second or secondary glow, as in heated metal before it ceases to become incandescent.
3.
the pleasant remembrance of a past experience, glory, etc.:
She basked in the afterglow of her stage triumph.
4.
phosphorescence (def 3).
Origin
1870-1875
1870-75; after + glow
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for afterglow
  • Once the gamma rays fade, there's usually an afterglow in other wavelengths of light that can last for weeks or months.
  • They had found the cool afterglow of the big bang: the cosmic microwave background radiation.
  • The afterglow can persist for hours, days, or even weeks.
British Dictionary definitions for afterglow

afterglow

/ˈɑːftəˌɡləʊ/
noun
1.
the glow left after a light has disappeared, such as that sometimes seen after sunset
2.
the glow of an incandescent metal after the source of heat has been removed
3.
(physics) luminescence persisting on the screen of a cathode-ray tube or in a gas-discharge tube after the power supply has been disconnected
4.
a trace, impression, etc, of past emotion, brilliance, etc
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for afterglow
n.

also after-glow, 1829, from after + glow (n.).

Online Etymology Dictionary, © 2010 Douglas Harper
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