Columnar

Columnar
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.

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  • columnar — columnár adj. m., pl. columnári; f. sg. columnáră, pl. columnáre Trimis de siveco, 10.08.2004. Sursa: Dicţionar ortografic  COLUMNÁR, Ă adj. (Despre structura rocilor) În formă de columnă; asemănător unei columne. [< …   Dicționar Român

  • columnar — 1728, from L.L. columnaris rising in the form of a pillar, from columna column (see COLUMN (Cf. column)) …   Etymology dictionary

  • Columnar — In biology, columnar refers to the shape of epithelial cells that are taller than they are wide.[1] Form follows function in biology, and columnar morphorphology hints at the functions of the cell. Columnar cells are important in absorption and… …   Wikipedia

  • columnar — columnarity /kol euhm nar i tee/, n. /keuh lum neuhr/, adj. 1. shaped like a column. 2. characterized by columns: columnar architecture. 3. Also, columnal. printed, arranged, etc., in columns: data in columnar form. [1720 30; < LL columnaris,… …   Universalium

  • columnar — co·lum·nar kə ləm nər adj of, relating to, being, or composed of tall narrow somewhat cylindrical or prismatic epithelial cells <columnar epithelium> <columnar tissue> …   Medical dictionary

  • columnar — adjective 1. having the form of a column trees with columniform trunks columnar forms a columnlike tree trunk • Syn: ↑columniform, ↑columnlike • Similar to: ↑columned …   Useful english dictionary

  • columnar — column ► NOUN 1) an upright pillar supporting an arch or other structure or standing alone as a monument. 2) a line of people or vehicles moving in the same direction. 3) a vertical division of a page or text. 4) a regular section of a newspaper… …   English terms dictionary

  • 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 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 * Stratified columnar epithelia * Pseudostratified… …   Wikipedia

  • 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… …   The Collaborative International Dictionary of English

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