Source : Webster's Revised Unabridged Dictionary (1913)

Rhaphe \Rha"phe\, n. [NL., fr. Gr. ??? seam, fr. ??? to sew. ]
   (Bot.)
   The continuation of the seed stalk along the side of an
   anatropous ovule or seed, forming a ridge or seam. [Written
   also {raphe}.] --Gray.

Source : WordNet®

rhaphe
     n : a ridge that forms a seam between two parts [syn: {raphe}]