'Columnar epithelium' definitions:

Definition of 'Columnar epithelium'

From: GCIDE
  • Columnar \Co*lum"nar\, a. [L. columnaris, fr. columna.] Formed in columns; having the form of a column or columns; like the shaft of a column. [1913 Webster]
  • Columnar epithelium (Anat.), epithelium in which the cells are prismatic in form, and set upright on the surface they cover.
  • Columnar structure (Geol.), a structure consisting of more or less regular columns, usually six-sided, but sometimes with eight or more sides. The columns are often fractured transversely, with a cup joint, showing a concave surface above. This structure is characteristic of certain igneous rocks, as basalt, and is due to contraction in cooling. [1913 Webster]