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[rey-fee] /ˈreɪ fi/
noun, plural raphae
[rey-fee] /ˈreɪ fi/ (Show IPA)
Anatomy. a seamlike union between two parts or halves of an organ or the like.
  1. (in certain ovules) a ridge connecting the hilum with the chalaza.
  2. a median line or slot on a cell wall of a diatom.
Origin of raphe
1745-55; < New Latin < Greek rhaphḗ seam, suture, akin to rháptein to sew, stitch together Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for raphe


noun (pl) -phae (-fiː)
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
Word Origin
C18: via New Latin from Greek rhaphē a seam, from rhaptein to sew together
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for raphe

"seam, suture" (medical), 1753, medical Latin, from Greek rhaphe "seam, suture (of a skull)," from rhaptein "to sew together, stitch" (see wrap).

Online Etymology Dictionary, © 2010 Douglas Harper
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raphe in Medicine

raphe ra·phe or rha·phe (rā'fē)
n. pl ra·phae (-fē')
A seamlike line or ridge between two similar parts of a body organ, as in the scrotum.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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raphe in Science
Plural raphae (rā'fē')
  1. A seamlike line or ridge between two similar parts of a body organ, as in the scrotum.

  2. The portion of the funiculus that is united to the ovule wall, commonly visible as a line or ridge on the seed coat.

  3. A groove in the frustule of some diatoms.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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