turret-heads

turret

[tur-it, tuhr-]
noun
1.
a small tower, usually one forming part of a larger structure.
2.
a small tower at an angle of a building, as of a castle or fortress, frequently beginning some distance above the ground.
3.
Also called turrethead [tur-it-hed, tuhr-] . a pivoted attachment on a lathe or the like for holding a number of tools, each of which can be presented to the work in rapid succession by a simple rotating movement.
4.
Military. a domelike, sometimes heavily armored structure, usually revolving horizontally, within which guns are mounted, as on a fortification, ship, or aircraft.
5.
Fortification. a tall structure, usually moved on wheels, formerly employed in breaching or scaling a fortified place, a wall, or the like.

Origin:
1300–50; Middle English turet < Middle French turete, equivalent to tur tower + -ete -et

turretless, adjective
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
turret (ˈtʌrɪt)
 
n
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
 
[C14: from Old French torete, from tor tower, from Latin turris]

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

turret
c.1300, "small tower," from O.Fr. touret (12c.), dim. of tour "tower," from L. turris (see tower). Meaning "low, flat gun-tower on a warship" is recorded from 1862, later also of tanks.
Online Etymology Dictionary, © 2010 Douglas Harper
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