See under airglow.
Bechdel testRead more in this article about some frequently asked questions and fun facts related to our definitions.
What Does The Name “Mohammed” Mean?For the last 14 years, Jack was the most common boy’s name in England and Wales. Last year, though, Oliver overtook Jack to take the top spot. There’s a more interesting story, though, in the statistics: over 7,000 newborn boys in Britain were given one of 12 variations of the name Mohammed, such as Muhammad or Mohammad. Combined, these forms place it in the top …
Origin of twilight glow
First recorded in 1810–20
Definition for twilight glow (2 of 2)
[ air-gloh ]
/ ˈɛərˌgloʊ /
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.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for twilight glow
/ (ˈɛəˌɡləʊ) /
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
Science definitions for twilight glow
[ 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.