raphide

noun

raph·​ide ˈra-ˌfīd How to pronounce raphide (audio)
plural raphides ˈra-ˌfīdz How to pronounce raphide (audio)
ˈra-fə-ˌdēz
: any of the needle-shaped crystals usually of calcium oxalate that develop as metabolic by-products in plant cells

Example Sentences

Recent Examples on the Web These contain crystals of calcium carbonate called raphides, which take the form of microscopic needles. Kenneth Setzer, miamiherald, 14 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'raphide.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Word History

Etymology

French & New Latin; French raphide, from New Latin raphides, plural, from Greek rhaphides, plural of rhaphid-, rhaphis needle, from rhaptein

First Known Use

circa 1842, in the meaning defined above

Time Traveler
The first known use of raphide was circa 1842

Dictionary Entries Near raphide

Cite this Entry

“Raphide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/raphide. Accessed 1 Dec. 2022.

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