Source : Webster's Revised Unabridged Dictionary (1913)

Basilar \Bas"i*lar\, Basilary \Bas"i*la*ry\, a. [F. basilaire,
   fr. L. basis. See {Base}, n.]
   1. Relating to, or situated at, the base.

   2. Lower; inferior; applied to impulses or springs of action.
      [R.] ``Basilar instincts.'' --H. W. Beecher.

Source : WordNet®

basilary
     adj : of or relating to or located at the base; "the basilar
           membrane of the cochlea" [syn: {basilar}]