What is "cheval glass"

Cheval \Che*val"\, n.; pl. Chevaux. [F. See Cavalcade.] A horse; hence, a support or frame.

Cheval glass, a mirror swinging in a frame, and large enough to reflect the full length figure. [1913 Webster] ||

n. A long mirror, mounted on a swivel in a frame, allowing it to be tilted.

n. a full length mirror mounted in a frame in which it can be tilted