| epithelium consisting of one or more layers of elongated cells of cylindrical or prismatic shape. |
| columnar epithelium n. Epithelium consisting of one or more cell layers, the most superficial of which is composed of elongated and somewhat cylindrical cells projecting toward the surface. |
columnar epithelium n.
Epithelium made up of cells that are taller than they are wide and that form a single layer.