kəˈləmnə(r) adjective
Etymology: Late Latin columnaris, from Latin columna column + -aris -ar
1. : formed in columns : having the form of a column : like the shaft of a column
columnar forms
2. : of, relating to, or characterized by columns
columnar construction
as
a. cryptology : in columns : vertical
columnar writing
b. : by columns
columnar transposition
3. : of, derived from, or appearing in a newspaper column
a popular columnar character