Source : Webster's Revised Unabridged Dictionary (1913)

Tanager \Tan"a*ger\, n. [NL. tanagra, probably fr. Brazilian
   tangara.] (Zo["o]l.)
   Any one of numerous species of bright-colored singing birds
   belonging to {Tanagra}, {Piranga}, and allied genera. The
   scarlet tanager ({Piranga erythromelas}) and the summer
   redbird ({Piranga rubra}) are common species of the United
   States.

Source : WordNet®

tanager
     n : any of numerous New World woodland birds having brightly
         colored males