Source : Webster's Revised Unabridged Dictionary (1913)

Prosenchyma \Pros*en"chy*ma\, n. [NL., fr. Gr. ? near +
   -enchyma, as in parenchyma.] (Bot.)
   A general term applied to the tissues formed of elongated
   cells, especially those with pointed or oblique extremities,
   as the principal cells of ordinary wood.