raphe(redirected from Raphe nuclei)
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ra·phealso rha·phe (rā′fē′)
n. pl. ra·phae (-fē′) also rha·phae
1. Anatomy A seamlike line or ridge between two similar parts of a body organ, as in the scrotum.
2. Botany The portion of the funiculus that is united to the ovule wall, commonly visible as a line or ridge on the seed coat.
3. The median groove of a diatom valve.
n, pl -phae (-fiː)
1. (Botany) an elongated ridge of conducting tissue along the side of certain seeds
2. (Microbiology) a longitudinal groove on the valve of a diatom
3. (Anatomy) anatomy a connecting ridge, such as that between the two halves of the medulla oblongata
[C18: via New Latin from Greek rhaphē a seam, from rhaptein to sew together]
n., pl. -phae (-fē).
1. a seam along the middle of an anatomical structure, as the underside of the tongue.
2. Bot. (in certain ovules) a ridge connecting the hilum with the chalaza.
[1745–55; < New Latin]
n. rafe, línea de unión de dos mitades simétricas de una estructura tal como la lengua.