parhelion [pahr- hee-lee- uh n, - heel-y uh n] EXAMPLES | WORD ORIGIN noun, plural par·he·li·a . [pahr- hee-lee- uh, - heel-y uh] /pɑrˈhi li ə, -ˈhil yə/ . Meteorology a bright circular spot on a solar halo; a mock sun: usually one of two or more such spots seen on opposite sides of the sun, and often accompanied by additional luminous arcs and bands. Origin of parhelion 1640–50;
noun use of neuter of
beside the sun. See
helio- Related forms par·he·lic, par·he·li·a·cal , [pahr-hi- lahy- uh-k uh l] /ˌpɑr hɪˈlaɪ ə kəl/ adjective
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for parhelion Historical Examples of parhelion British Dictionary definitions for parhelion noun plural -lia ( -lɪə) one of several bright spots on the parhelic circle or solar halo, caused by the diffraction of light by ice crystals in the atmosphere, esp around sunset Also called: mock sun, sundog Compare anthelion Derived Forms parhelic ( pɑːˈhiːlɪk, -ˈhɛlɪk) or parheliacal ( ˌpɑːhɪˈlaɪək), əl adjective Word Origin for parhelion
C17: via Latin from Greek
parēlion, from para- 1 (beside) + hēlios sun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for parhelion n.
1640s, from Greek
parelion "a mock sun," from para- "beside" (see para- (1)) + helios "sun" (see sol).
Online Etymology Dictionary, © 2010 Douglas Harper
Plural parhelia A white spot appearing at times in the parhelic circle. White parhelia are believed to form from light that is reflected off of atmospheric ice crystals; colored parhelia are believed to form from light that is refracted by atmospheric ice crystals. Multiple parhelia can often be seen simultaneously. Compare anthelion.
The American Heritage® Science Dictionary
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