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raphides

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

plural noun

Botany.

singular

raphide, raphis
  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.

These experiments show conclusively that the acridity of the Indian turnip and calla is due to the raphides of calcium oxalate only.

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

The fuchsia and tradescantia contained bundles of raphides of the same form and equally as fine as those of the acrid plants.

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

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

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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