parhelic circle

parhelic circle

noun Meteorology.
a white, horizontal band passing through the sun, either incomplete or extending around the horizon, produced by the reflection of the sun's rays from the vertical faces of ice prisms in the atmosphere.
Also called parheliacal ring.


Origin:
1885–90; parhel(ion) + -ic
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Parhelic circle is always a great word to know.
So is photochemical smog. Does it mean:
air pollution containing ozone and reactive chemical compounds formed by sunlight on nitrogen oxides and hydrocarbons, often from auto exhaust
the upper portion of a cumulus cloud characterized by dense, sharply defined, cauliflower-like upper parts and sometimes by great verticality
Collins
World English Dictionary
parhelic circle
 
n
meteorol a luminous band at the same altitude as the sun, parallel to the horizon, caused by reflection of the sun's rays by ice crystals in the atmosphere

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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American Heritage
Science Dictionary
parhelic circle   (pär-hē'lĭk)  Pronunciation Key 
A luminous halo visible at the height of the Sun and parallel to the horizon, caused by the Sun's rays reflecting off atmospheric ice crystals.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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