columnar : Dictionary / Wörterbuch (BEOLINGUS, TU Chemnitz)

English Dictionary: columnar	by the DICT Development Group
2 results for columnar
From WordNet (r) 3.0 (2006) [wn]:
columnar adj having the form of a column; "trees with columniform trunks"; "columnar forms"; "a columnlike tree trunk" Synonym(s): columniform, columnar, columnlike characterized by columns; "columnar construction"
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Columnar \Colum"nar\, a. [L. columnaris, fr. columna.] Formed in columns; having the form of a column or columns; like the shaft of a column. {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.