SINCE 1828
anthelion
noun
ant·he·li·on
| \ (ˈ)ant¦hēlyən, (ˈ)an¦thē-, -lēən\
plural anthelia\ -yə , -ēə \
or anthelions
Definition of anthelion
: the brightish white halolike spot appearing occasionally on the parhelic circle opposite the sun
— called also antisun, countersun
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