A turret is a small narrow tower on top of a building or a larger tower.
2. countable noun [oft noun NOUN]
The turret on a tank or warship is the part where the guns are fixed, which can be turned in any direction.
turret in British English
(ˈtʌrɪt)
noun
1.
a small tower that projects from the wall of a building, esp a medieval castle
2.
a.
a self-contained structure, capable of rotation, in which weapons are mounted, esp in tanks and warships
b.
a similar structure on an aircraft that houses one or more guns and sometimes a gunner
3.
a tall wooden tower on wheels used formerly by besiegers to scale the walls of a fortress
4.
(on a machine tool) a turret-like steel structure with tools projecting radially that can be indexed round to select or to bring each tool to bear on the work
Word origin
C14: from Old French torete, from tor tower, from Latin turris
turret in American English
(ˈtɜrɪt; ˈtʊrɪt)
noun
1.
a small tower projecting from a building, usually at a corner and often merely ornamental
2.
a wooden, usually square tower on wheels, carrying soldiers, battering-rams, catapults, etc., used in ancient warfare for attacking fortresses and walled cities
3.
a.
a low, armored, usually revolving, structure for a gun or guns, as on a warship, tank, or fortress
b.
a transparent dome for a gun and gunner, as on a bomber
4.
an attachment for a lathe, drill, etc., consisting of a block holding several cutting tools, which may be rotated to present any of the tools to the work
: also ˈturretˌhead (ˈtɜrɪtˌhɛd)
5.
an adjustable device on a camera for holding various lenses