anthelion

 
Pronunciation: /antˈhiːlɪən, anˈθiːl-/

noun (plural anthelia /-lɪə/)

  • a luminous halo round a shadow projected by the sun on to a cloud or fog bank.
  • a parhelion seen opposite the sun in the sky.

Origin:

late 17th century: from Greek anthēlion, neuter of anthēlios 'opposite to the sun', from anth- (variant of anti- 'against') + hēlios 'sun'