sundog
幻日
Sun·dog n. Meteorol.
1. A luminous spot occasionally seen a few degrees from the sun, supposed to be formed by the intersection of two or more halos, or in a manner similar to that of halos.
2. A fragmentary rainbow; a small rainbow near the horizon; -- called also dog and weathergaw.
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sundog
n : a bright spot on the parhelic circle; caused by diffraction
by ice crystals; "two or more parhelia are usually seen
at once" [syn: parhelion, mock sun]