Source : Webster's Revised Unabridged Dictionary (1913)

Gasserian \Gas*se"ri*an\, a.
   Relating to Casserio (L. Gasserius), the discover of the
   Gasserian ganglion.

   {Gasserian ganglion} (Anat.), a large ganglion, at the root
      of the trigeminal, or fifth cranial, nerve.