CIRQUE
cirque, corrie, cwm
(noun) a steep-walled semicircular basin in a mountain; may contain a lake
Source: WordNet® 3.1
Etymology
Noun
cirque (plural cirques)
(geology) A curved depression in a mountainside with steep walls, forming the end of a valley.
Synonyms: corrie, combe, cwm
(dated or literary) Something in the shape of a circle or ring, such as a Roman circus.
Synonyms: circle, ring
Source: Wiktionary
Cirque, n. Etym: [F., fr. L. circus.]
1. A circle; a circus; a circular erection or arrangement of objects.
A dismal cirque Of Druid stones upon a forlorn moor. Keats.
2. A kind of circular valley in the side of a mountain, walled around
by precipices of great height.
Source: Webster’s Unabridged Dictionary 1913 Edition