cirque(n = noun.object) corrie, cwm - a steep-walled semicircular basin in a mountain; may contain a lake;
is a kind of basin

1.  A circle; a circus; a circular erection or arrangement of objects. [1913 Webster]
"A dismal cirque
Of Druid stones upon a forlorn moor." [1913 Webster]

2.  A kind of circular valley in the side of a mountain, walled around by precipices of great height. [1913 Webster]

cirque, n.
1 Geol. a deep bowl-shaped hollow at the head of a valley or on a mountainside.
2 poet. a a ring. b an amphitheatre or arena.

Etymology:
F f. L CIRCUS