Cheval glass

from WordNet (r) 3.0 (2006)

cheval glass
    n 1: a full length mirror mounted in a frame in which it can be
         tilted

from The Collaborative International Dictionary of English v.0.48

Cheval \Che*val"\, n.; pl. {Chevaux}. [F. See {Cavalcade}.]
   A horse; hence, a support or frame.
   [1913 Webster]

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