raphe
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.
Origin of raphe
1Words Nearby raphe
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use raphe in a sentence
Ward obtained the unexpected result that it was confined to the raphe of the seed.
Seeds large, usually slightly notched; chalaza rather narrow; raphe a groove.
The Grapes of New York | U. P. HedrickSeeds small to very small, slightly notched on top; chalaza depressed, oblong-oval; raphe broad, slightly distinct.
The Grapes of New York | U. P. HedrickSeeds two to three of medium size; chalaza oval in shape, slightly distinct; raphe flat, usually inconspicuous, rarely prominent.
The Grapes of New York | U. P. HedrickSeeds small to medium, plump, slightly notched, if at all; chalaza oblong-oval; raphe slightly distinct or invisible.
The Grapes of New York | U. P. Hedrick
British Dictionary definitions for raphe
/ (ˈreɪfɪ) /
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
Origin of raphe
1Collins 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
[ 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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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