airglow
[ air-gloh ]
/ ˈɛərˌgloʊ /
noun
a dim light from the upper atmosphere caused by emissions from atoms and molecules ionized by solar radiation: observed at night (nightglow ), during the day (dayglow ), and at twilight (twilight glow ), with each having slightly different characteristics.
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Words nearby airglow
air freshener, air frost, air gap, air gas, air gauge, airglow, air guitar, air gun, air hammer, air harbor, air-hardening
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
British Dictionary definitions for airglow
airglow
/ (ˈɛəˌɡləʊ) /
noun
the faint light from the upper atmosphere in the night sky, esp in low latitudes
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
Scientific definitions for airglow
airglow
[ âr′glō′ ]
A faint photochemical luminescence in the upper atmosphere caused by the collision of x-rays and charged particles from the Sun with atoms and molecules, especially of oxygen, sodium, and the hydroxyl radical (OH). Airglow is strongest over low and middle latitudes.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.