definition of parenchymal
Parenchyma. A ground tissue of plants chiefly concerned with the manufacture and storage of food. The primary functions of plants, such as photosynthesis, assimilation, respiration, storage, secretion, and excretionâthose associated with living protoplasmâproceed mainly in parenchymal cells.
paÂ·renÂ·chyÂ·ma. n. 1. Anatomy The tissue characteristic of an organ, as distinguished from associated connective or supporting tissues. 2. Botany A simple plant tissue, composed of thin-walled cells and forming the greater part of leaves, roots, the pulp of fruit, and the pith of stems.