Main Entry: col·umn

Pronunciation: \ˈkäl-əm\

Function: noun

: a longitudinal subdivision of the spinal cord that resembles a column or pillar: as a : any of the principal longitudinal subdivisions of gray matter or white matter in each lateral half of the spinal cord—see dorsal horn, gray column, lateral column 1, ventral horn; compare funiculus a b : any of a number of smaller bundles of spinal nerve fibers : fasciculus