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raphe

[ rey-fee ]
/ ˈreɪ fi /
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noun, plural ra·phae [rey-fee]. /ˈreɪ fi/.
Anatomy. a seamlike union between two parts or halves of an organ or the like.
Botany.
  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.
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Origin of raphe

1745–55; <New Latin <Greek rhaphḗ seam, suture, akin to rháptein to sew, stitch together
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use raphe in a sentence

British Dictionary definitions for raphe

raphe
/ (ˈreɪfɪ) /

noun plural -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 for raphe

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

Scientific definitions for raphe

raphe
[ rāfē′ ]

Plural raphae (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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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