Source : Webster's Revised Unabridged Dictionary (1913)

Corsage \Cor"sage\ (k[^o]r"s[asl]j), n. [F. See {Corset}.]
   The waist or bodice of a lady's dress; as, a low corsage.

Source : WordNet®

corsage
     n : an arrangement of flowers that is usually given as a present
         [syn: {bouquet}, {posy}, {nosegay}]