Columnar
Columnar , adjective
[Latin columnaris, from columna.]
Formed in columns; having the form of a column or columns; like the shaft of a column.
Collocations (2)
Columnar epithelium (Anatomy) , epithelium in which the cells are prismatic in form, and set upright on the surface they cover.
Columnar structure (Geology) , 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.<-- as at Giant's Causeway, Ireland -->