Source : Webster's Revised Unabridged Dictionary (1913)

Fimbria \Fim"bri*a\, n.; pl. {Fimbri[ae]}. [L., fringe. See
   {Fringle}.] (Anat.)
   (a) pl. A fringe, or fringed border.
   (b) A band of white matter bordering the hippocampus in the
       brain. -- {Fim"bri*al}, a.