sunglow definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
a colored glow seen in the sky at sunrise or sunset as a result of the diffraction of the sun's rays by particles in the air
sunglow definition by American Heritage Dictionary
A rose or yellow glow in the sky preceding sunrise or following sunset.