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Columnar   Listen
adjective
Columnar  adj.  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.






Collaborative International Dictionary of English 0.48








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"Columnar" Quotes from Famous Books



... laminated; it contains some olivine, and high up the valley much glassy feldspar, where, also, it is often amygdaloidal; it is never highly vesicular, except on the sides of rents and on the upper and lower, spherically laminated surfaces. It is often columnar; and in one place I saw magnificent columns, each face twelve feet in width, with their interstices filled up with calcareous tuff. The streams rest conformably on the white sedimentary beds, but I nowhere saw the actual junction; nor did I anywhere ...
— South American Geology - also: - Title: Geological Observations On South America • Charles Darwin

... as we find lining the inside of a man's cheek (from which the cells sq.ep. were taken) or covering the mesentery of various types— sq.end. are from the mesentery (Section 16) of a frog. A short cylindroidal form of cell makes up columnar epithelium, seen typically in the cells covering the villi of the duodenum (Figure V.). This epithelium of the villi has the outer border curiously striated, and this is usually spoken of as leading towards "ciliated" epithelium, ...
— Text Book of Biology, Part 1: Vertebrata • H. G. Wells

... inches. We find the same irregularity as to architraves. Their height is determined only by the taste of the architect or the necessities of the building. So also with the spacing of columns. Not only does the inter- columnar space vary considerably between temple and temple, or chamber and chamber, but sometimes—as in the first court at Medinet Habu—they vary in the same portico. We have thus far treated separately of each type; but when various types were associated in a single ...
— Manual Of Egyptian Archaeology And Guide To The Study Of Antiquities In Egypt • Gaston Camille Charles Maspero

... the professorial temperament; there was not much poetry in his composition. If you were to ask him, 'What are those wonderful rocks over there, shaped like some Titanic organ and glowing with a kind of violet flame?' he would say, 'Organ be blowed. It's columnar lithoidite.' I learnt a little from him, but not enough. I wish we had him here. He could have ...
— South Wind • Norman Douglas

... magnificent and naked, with here and there a long strip of damask, black with damp and age, hanging down on a bare panel of the wall. It was furnished with exactly one gilt armchair, with a broken back, and an octagon columnar stand bearing a heavy marble vase ornamented with sculptured masks and garlands of flowers, and cracked from top to bottom. Charles Gould was dusty with the white dust of the road lying on his boots, on his shoulders, on ...
— Nostromo: A Tale of the Seaboard • Joseph Conrad


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