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raphe
[ rey-fee ]
noun
, plural ra·phae [rey, -fee].
- Anatomy. a seamlike union between two parts or halves of an organ or the like.
- Botany.
- (in certain ovules) a ridge connecting the hilum with the chalaza.
- a median line or slot on a cell wall of a diatom.
raphe
/ ˈreɪfɪ /
noun
- an elongated ridge of conducting tissue along the side of certain seeds
- a longitudinal groove on the valve of a diatom
- anatomy a connecting ridge, such as that between the two halves of the medulla oblongata
raphe
/ rā′fē′ /
, Plural raphae rā′fē′
- A seamlike line or ridge between two similar parts of a body organ, as in the scrotum.
- The portion of the funiculus that is united to the ovule wall, commonly visible as a line or ridge on the seed coat.
- A groove in the frustule of some diatoms.
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Word History and Origins
Origin of raphe1
1745–55; < New Latin < Greek rhaphḗ seam, suture, akin to rháptein to sew, stitch together
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Word History and Origins
Origin of raphe1
C18: via New Latin from Greek rhaphē a seam, from rhaptein to sew together
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Example Sentences
Ward obtained the unexpected result that it was confined to the raphe of the seed.
From Project Gutenberg
Seeds large, usually slightly notched; chalaza rather narrow; raphe a groove.
From Project Gutenberg
Seeds small to very small, slightly notched on top; chalaza depressed, oblong-oval; raphe broad, slightly distinct.
From Project Gutenberg
Seeds two to three of medium size; chalaza oval in shape, slightly distinct; raphe flat, usually inconspicuous, rarely prominent.
From Project Gutenberg
Seeds small to medium, plump, slightly notched, if at all; chalaza oblong-oval; raphe slightly distinct or invisible.
From Project Gutenberg
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