Lyra /(?)/

Ly·ra

Lyra

n.
  1. A northern constellation, the Harp, containing a white star of the first magnitude, called Alpha Lyræ, or Vega. (Astron.)
  2. The middle portion of the ventral surface of the fornix of the brain; -- so called from the arrangement of the lines with which it is marked in the human brain. (Anat.)