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.