- A little tower, frequently a merely ornamental structure at
one of the angles of a larger structure. - A movable building, of a square form, consisting of ten or
even twenty stories and sometimes one hundred and twenty cubits high,
usually moved on wheels, and employed in approaching a fortified place,
for carrying soldiers, engines, ladders, casting bridges, and other
necessaries. - A revolving tower constructed of thick iron plates, within
which cannon are mounted. Turrets are used on vessels of war and on
land. - The elevated central portion of the roof of a passenger
car. Its sides are pierced for light and ventilation.