The Collaborative International Dictionary
Pleurenchyma
Pleurenchyma \Pleu*ren"chy*ma\, n. [Gr. ? side + ?, as in parenchyma.] (Bot.) A tissue consisting of long and slender tubular cells, of which wood is mainly composed.
Wiktionary
pleurenchyma
n. (context botany English) A tissue consisting of long and slender tubular cells, of which wood is mainly composed.