columnar /kəˈlʌm.nəɹ/ adjective3 •Having the shape of a column. •Of or pertaining to an epithelium with has cells taller than they are wide (column-shaped).where a villus comes next to a gland the short cubical cells of the gland may be traced into the columnar cells of the villus , the hyaline border becoming more marked — 1880 •Constructed with columns.