circumhorizontal arc en · NOUN
Meanings
- An optical phenomenon, a large, brightly spectrum-coloured band running parallel to the horizon, formed by the refraction of sunlight or moonlight in plate-shaped ice crystals suspended in the atmosphere, typically in cirrus or cirrostratus clouds.
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| circumhorizontal arcs | Number=Plur | lexicographic |