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raphides

American  
[raf-i-deez] / ˈræf ɪˌdiz /

plural noun

Botany.
  • raphide,
    singular
  • raphis
    singular
  1. acicular crystals, usually composed of calcium oxalate, that occur in bundles in the cells of many plants.


Etymology

Origin of raphides

1835–45; < New Latin < Greek rhaphídes, plural of rhaphís needle


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

From this it will be seen that in this case the raphides did not separate from the mucilaginous juice to be held in suspension in the ether.

From Scientific American Supplement, No. 829, November 21, 1891 by Various

Crystals, called raphides, in the wood cells, take the edges off tools used in working locust lumber.

From Trees Worth Knowing by Julia Ellen Rogers

This opinion was opposed by Prof. Burrill and other eminent botanists, who claimed that other plants, as the fuchsia, are not at all acrid, although they contain raphides as plentifully as the Indian turnip.

From Scientific American Supplement, No. 829, November 21, 1891 by Various

An examination showed it to be entirely free from raphides, and it had lost every trace of its acridity.

From Popular Science Monthly Oct, Nov, Dec, 1915 — Volume 86 by Anonymous

The microscope showed it to be free from oxalate of lime or other raphides.

From The Fijians A Study of the Decay of Custom by Basil Thomson

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