Definitions for "Raphe"
Keywords:  diatom, slit, seam, monoraphid, pennate
linear slit in the valve
An elongated fissure in a valve. The raphe is used for movement. The number and position of raphes is important for identification.
A longitudinal slit in one or both surfaces of a diatom cell wall, necessary for movement to occur, and found only in pennate diatoms.
A line, ridge, furrow, or band of fibers, especially in the median line; as, the raphe of the tongue.
Same as Rhaphe.
( Rhaphe). the ridge connecting the hilum and chalaza of an anatropous or amphitropous ovule ; the ridge on the sporocarp of Marsilea.