(anatomy) The series of vertebrae that protect the spinal cord; the spinal column.

The total amount per unit area of a material suspended in a fluid or in a cloud in space, measured along the length of a column.

(physics, chemistry) An apparatus for the separation of the volatile components of a liquid by means of fractional distillation, sometimes accompanied by selective adsorption

plural of column space

A cylindrical outdoor sidewalk structure (like a column) used for advertising; an advertising column

(automotive) a column originating in the dashboard and ending at the steering wheel / (aviation) a column ending in the flight yoke, whose manipulation allows for the control of pitch

(automotive) A shift lever used to change gears, mounted on the steering column.

(printing) One inch of a printed column; a measure of space allocated.

plural of column inch

(anatomy, dated) The anterior corticospinal tract.