What is "rhaphe"

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.

n. (context botany English) (alternative form of raphe English)

n. a ridge that forms a seam between two parts [syn: raphe]