A rotating plate on the microscope that contains up to five objectives to provide for a rapid change of magnification.

The rotating part of an armored gun mount. Turrets are commonly seen on tanks and warships, and are designed to protect the guns and gun crews from enemy gunfire and the environment.

The rotatable metal piece into which the microscope's objective lenses are attached. A "turret" style stereo microscope refers to the type that has more than one objective lens which can then be rotated into position. On a compound microscope the turret is the ring holding the objective lenses allowing the operator to rotate them into position as needed. See the picture at the top of this page.

a self-contained weapons platform housing guns and capable of rotation

A little tower, frequently a merely ornamental structure at one of the angles of a larger structure.

A revolving tower constructed of thick iron plates, within which cannon are mounted. Turrets are used on vessels of war and on land.

an ornamental tower projecting from a larger structure

Small tower, round or polygonal; usually a lookout.

The elevated central portion of the roof of a passenger car. Its sides are pierced for light and ventilation.

All-metal roof section of a car body with a fixed roof. The word also applies to a conical-shaped cover over a suspension strut.

The housing for the adjustment of windage and elevation dials on riflescopes.