1. [ noun ] (anatomy,zoology) animal tissue that constitutes the essential part of an organ as contrasted with e.g. connective tissue and blood vessels
Related terms: animal_tissue
2. [ noun ] (botany,zoology) the primary tissue of higher plants composed of thin-walled cells that remain capable of cell division even when mature; constitutes the greater part of leaves, roots, the pulp of fruits, and the pith of stems
Related terms: plant_tissue chlorenchyma leaf root pith pulp