from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun One of a bundle of needlelike crystals of calcium oxalate occurring in many plant cells.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun biochemistry A
crystalof calcium oxalate, shaped like a needle, which forms as a metabolic byproductin some plant cells.
from The American Heritage® Dictionary of the English Language, 4th Edition
[French, sing. of raphides, from New Latin, from Greek rhaphides, pl. of rhaphis, needle, from rhaptein, to sew; see wer- in Indo-European roots.]
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