gimbal-ring

gimbals

[jim-buhlz, gim-]
noun (used with a singular verb)
Sometimes, gimbal. a contrivance, consisting of a ring or base on an axis, that permits an object, as a ship's compass, mounted in or on it to tilt freely in any direction, in effect suspending the object so that it will remain horizontal even when its support is tipped.
Also called gimbal ring.


Origin:
1570–80; alteration of gimmal

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gimbals (ˈdʒɪmbəlz, ˈɡɪm-)
 
pl n
Also called: gimbal ring a device, consisting of two or three pivoted rings at right angles to each other, that provides free suspension in all planes for an object such as a gyroscope, compass, chronometer, etc
 
[C16: variant of earlier gimmal finger ring, from Old French gemel, from Latin gemellus, diminutive of geminus twin]

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