Source : Webster's Revised Unabridged Dictionary (1913)

Raphe \Ra"phe\ (r[=a]"f[-e]), n. [NL., fr. Gr. ? a seam or
   suture, fr. ? to sew or stitch together.]
   1. (Anat.) A line, ridge, furrow, or band of fibers,
      especially in the median line; as, the raphe of the
      tongue.

   2. (Bot.) Same as {Rhaph?}.

Source : WordNet®

raphe
     n : a ridge that forms a seam between two parts [syn: {rhaphe}]
     [also: {raphae} (pl)]