Columnar epithelium
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]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • columnar epithelium — epithelium that is composed of columnar cells …   Medical dictionary

  • columnar epithelium — noun : epithelium consisting of or having the superficial layer composed of tall narrow somewhat cylindrical or prismatic cells and occurring in man chiefly in the digestive tract from the esophageal end of the stomach to the anus and in various… …   Useful english dictionary

  • columnar epithelium — Biol. epithelium consisting of one or more layers of elongated cells of cylindrical or prismatic shape. * * * …   Universalium

  • Pseudostratified columnar epithelium — Transverse section of tracheal tissue. Note that image is incorrectly labeled ciliated stratified epithelium at upper right. Code TH …   Wikipedia

  • Simple columnar epithelium — Vertical section of a villus from the dog’s small intestine. X 80. (Simple columnar epithelium labeled at right, third from top.) …   Wikipedia

  • stratified columnar epithelium — noun Any of a series of secretive layers of cells found in the uterus, parts of the anus and eye, the male urethra and vas deferens and in parts of the pharynx …   Wiktionary

  • Columnar epithelial cell — Code TH H2.00.02.0.01012 Columnar epithelia are epithelial cells whose heights are at least four times their width. Columnar epithelia are divided into simple (or unilayered), and stratified (or multi layered). Simple columnar epithelia… …   Wikipedia

  • 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 …   The Collaborative International Dictionary of English

  • Columnar structure — 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… …   The Collaborative International Dictionary of English

  • Epithelium — This article is about the epithelium as it relates to animal anatomy. For the fungal structure of the same name, see Pileipellis. Epithelium Code TH H2.00.02.0.00001 Epithelium is one of the four basic types of animal tissue, along with… …   Wikipedia

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