Sclereid

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sclereid

[′sklir·ē·əd]
(botany)
A thick-walled, lignified plant cell typically found in sclerenchyma.

Sclereid

 

a structural component of the sclerenchyma, that is, the mechanical tissue of plants. Sclereids derive from the parenchyma or, less frequently, the prosenchyma cells as a result of sclerification. Their layered and often mineralized walls have numerous porous canals. The most common type of scler-eid cell is a stone cell, or brachysclereid. (Sometimes the term “stone cells” is used to designate all sclereids.)