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Definition of parheliacal - 1 dictionary result

par⋅he⋅li⋅on

[pahr-hee-lee-uhn, -heel-yuhn]
–noun, plural -he⋅li⋅a [-hee-lee-uh, -heel-yuh] . 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.
Also called sundog.
Compare paraselene.


Origin:
1640–50; alter. of L parēlion < Gk parlion, n. use of neut. of parlios beside the sun. See par-, helio-


par⋅he⋅lic, par⋅he⋅li⋅a⋅cal [pahr-hi-lahy-uh-kuhl] , adjective
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