swivel [swiv-uh l] /ˈswɪv əl/ Show IPA noun, verb, swiveled, swiveling or (especially British) swivelled, swivelling.
a fastening device that allows the thing fastened to turn around freely upon it, especially to turn in a full circle.
such a device consisting of two parts, each of which turns around independently, as a compound link of a chain, one part of which turns freely in the other by means of a headed pin or the like.
a pivoted support allowing a gun to turn around in a horizontal plane.
a device attached to a loom and used as a shuttle to weave extra threads in the production of small figures, especially dots.
verb (used with object)
to turn or pivot on or as if on a swivel:
He swiveled his chair around.
to fasten by a swivel; furnish with a swivel.
verb (used without object)
to turn on or if as on a swivel.
1275–1325; Middle English (noun), equivalent to swiv- (weak stem of Old English swīfan to revolve; cognate with Old Norse svīfa to turn) + -el instrumental suffix
unswivel, verb (used with object), unswiveled, unswiveling or (especially British) unswivelled, unswivelling.