Rhaphides

• (n. pl.) Minute transparent, often needle-shaped, crystals found in the tissues of plants.
Found on http://thinkexist.com/dictionary/meaning/rhaphides/

Rhaphides

Rhaph'i·des noun plural [ New Latin , from Greek ........., ........., a needle, French raphides .] (Botany) Minute transparent, often needle-shaped, crystals found in the tissues of plants. [ Written also raphides .]
Found on http://www.encyclo.co.uk/webster/R/75
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