Langimage
English

antihelion

|an-ti-hel-i-on|

C2

/ˌæn.tiˈhiː.li.ən/

bright spot opposite the sun

Etymology
Etymology Information

'antihelion' originates from Modern scientific coinage based on Greek elements: 'anti-' meaning 'opposite' and 'helios' meaning 'sun'.

Historical Evolution

'antihelion' was formed in Neo-Latin/modern scientific usage from Greek components 'anti-' + 'helios' and was adopted into English in the context of atmospheric optics and halo phenomena.

Meaning Changes

Initially coined to denote a point or bright feature located opposite the sun; over time it has retained this specialized meteorological/optical meaning without major change.

Meanings by Part of Speech

Noun 1

a bright spot or small group of bright spots on the parhelic circle located approximately 180° opposite the sun, produced by reflection/refraction of sunlight in ice crystals in the atmosphere.

At dawn we noticed an antihelion on the parhelic circle opposite the rising sun.

Synonyms

Antonyms

Last updated: 2025/10/07 02:07