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.

Look at other dictionaries:

  • 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 — adjective Date: 1728 1. of, relating to, resembling, or characterized by columns 2. of, relating to, being, or composed of tall narrow somewhat cylindrical or prismatic epithelial cells …   New Collegiate Dictionary

  • columnar — column shaped …   Dictionary of ichthyology

  • columnar — adj. [L. columna, column] Formed like a column …   Dictionary of invertebrate zoology

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