Source : Webster's Revised Unabridged Dictionary (1913)

Pinenchyma \Pi*nen"chy*ma\, n. [NL., fr. Gr. ? a tablet +
   -enchyma, as in parenchyma.] (Bot.)
   Tabular parenchyma, a form of cellular tissue in which the
   cells are broad and flat, as in some kinds of epidermis.