Source : Webster's Revised Unabridged Dictionary (1913)

Anthelion \Ant*hel"ion\ (?; 277, 106), n.; pl. {Anthelia}.
   [Pref. anti + Gr. ? sun.] (Meteor.)
   A halo opposite the sun, consisting of a colored ring or
   rings around the shadow of the spectator's own head, as
   projected on a cloud or on an opposite fog bank.

Source : WordNet®

anthelia
     See {anthelion}