Definition of "parhelion"

parhelion

/pɑːˈhiː.lɪ.ən/

noun
plural parhelia or parhelions
1. Synonym of sun dog (“a bright spot in the sky, usually one of two on the parhelic circle on both sides of the sun (or occasionally above and below it), caused by the refraction of the sun's image through ice crystals”)
2. An image or reflection.
  Quotations
  The short (166 lines) Canto One, with all those amusing birds and parhelia, occupies thirteen cards.
  1962, Charles Kinbote [pseudonym; Vladimir Nabokov], Pale Fire, New York, N.Y.: Berkley Books, published November 1985