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Showing results for raphides. Search instead for aphidas.

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:

Examining the residue with a microscope it was found to consist of innumerable raphides or needle-like crystals.

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

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

A chemical examination proved beyond question that the raphides were of the same composition.

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

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

Among the cell-contents of some plants are beautiful crystals, called raphides.

From The Book of Household Management by Beeton, Mrs. (Isabella Mary)

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