anthelion


Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.

ant·he·li·on

 (ănt-hē′lē-ən, ăn-thē′-)
n. pl. ant·he·li·a (-lē-ə) or ant·he·li·ons
A luminous, white, diffuse spot occasionally seen in the sky opposite the sun on the parhelic circle.

[Greek anthēlion, from neuter of anthēlios, opposite the sun : anti-, anti- + hēlios, sun; see sāwel- in Indo-European roots.]

anthelion

(æntˈhiːlɪən; ænˈθiː-)
n, pl -lia (-lɪə)
1. (Physical Geography) a faint halo sometimes seen in polar or high altitude regions around the shadow of an object cast onto a thick cloud bank or fog
2. (Physical Geography) a white spot occasionally appearing on the parhelic circle at the same height as and opposite to the sun
[C17: from Late Greek, from anthēlios opposite the sun, from ante- + hēlios sun]

anthelion

A luminous area like a halo sometimes seen in the sky opposite the sun.
Mentioned in ?
References in periodicals archive ?
The anthelion is a reflected, usually whitish image of the Sun produced in the ice crystals of cirrus clouds.
The anthelion ("opposite the Sun") is located 180[degrees] of azimuth away from the Sun but at the same altitude.
What I saw that morning on my way to school is technically called an anthelion. The sundogs that are more commonly seen are parhelia, prismatic bright spots 22 [degrees] on either side of the Sun.