- Anat. a seamlike joining of the two lateral halves of an organ, as of the tongue
- a ridge of tissue along the side of an ovule, indicating the position of the vascular bundle which supplies the developing seed
- the line of union of the two carpels in the fruit of members of the umbel family
- a longitudinal fissure along the center of certain diatom shells
Origin of rapheModern Latin ; from Classical Greek rhaphē, seam ; from rhaptein, to stitch together ; from Indo-European an unverified form werp-, an unverified form wrep-, to turn, twist from source rhapsody
nounpl. ra·phae also rha·phae
- Anatomy A seamlike line or ridge between two similar parts of a body organ, as in the scrotum.
- Botany The portion of the funiculus that is united to the ovule wall, commonly visible as a line or ridge on the seed coat.
- The median groove of a diatom valve.
Origin of rapheNew Latin, from Greek rhaphē, seam, suture, from rhaptein, to sew; see wer-2 in Indo-European roots.
(plural raphae or raphes)
- (anatomy, botany) A ridge or seam on an organ, bodily tissue, or other structure, especially at the join between two halves or sections.
From Late Latin, from Ancient Greek ῥαφή (rhaphē, “seam”).