Lyra

(li'rah.) [L.] (Ast.) A constellation of the N. hemisphere, bet. Cygnus and Hercules, and to the S. of Draco. It contains one star, Vega, of the first magnitude.-(Anat.) A portion of the brain, bet. the posterior crura of the fornix of the cerebrum, and having somewhat the appearance of a lyre, owing to its being marked with prominent medullary fibres. [s. 563]