follow Dictionary.com

How do you spell Hannukah?

raphides

[raf-i-deez] /ˈræf ɪˌdiz/
plural noun, singular raphide [rey-fahyd] /ˈreɪ faɪd/ (Show IPA), raphis [rey-fis] /ˈreɪ fɪs/ (Show IPA). Botany
1.
acicular crystals, usually composed of calcium oxalate, that occur in bundles in the cells of many plants.
Origin
1835-1845
1835-45; < New Latin < Greek rhaphídes, plural of rhaphís needle
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
British Dictionary definitions for raphide

raphide

/ˈreɪfaɪd/
noun (pl) raphides (ˈræfɪˌdiːz)
1.
any of numerous needle-shaped crystals, usually of calcium oxalate, that occur in many plant cells as a metabolic product
Word Origin
C18: from French, from Greek rhaphis needle
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
Cite This Source
raphide in Science
raphide
  (rā'fīd)   
Plural raphides (rāf'ĭ-dēz')
One of a bundle of needlelike crystals of calcium oxalate occurring in many plant cells. The crystals discourage animals from eating the plant by irritating their tissues.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source

Word of the Day

Difficulty index for raphides

Few English speakers likely know this word

Word Value for raphide

13
13
Scrabble Words With Friends