Webster's Dictionary, 1913

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Gyro-pigeon (jī"ro*pĭj`ŭn) noun [ Latin gyrare to revolve + English pigeon .] A flying object simulating a pigeon in flight, when projected from a spring trap. It is used as a flying target in shooting matches. Knight.

Gyroma (ji*rō"mȧ) noun [ New Latin , from Greek gyroy^n to round, bend, from gyro`s round.] A turning round. [ R.]

Gyromancy (jĭr"o*măn`sȳ or jī"ro-) noun [ Greek gy^ros ring, circle + -mancy : confer French gyromancie .] A kind of divination performed by drawing a ring or circle, and walking in or around it. Brande & C.

Gyron (jī"rŏn) noun [ French giron ; of German origin. See Gore a piece of cloth.] (Her.) A subordinary of triangular form having one of its angles at the fess point and the opposite side at the edge of the escutcheon. When there is only one gyron on the shield it is bounded by two lines drawn from the fess point, one horizontally to the dexter side, and one to the dexter chief corner.

Gyronny (jī"rŏn*nȳ) adjective [ French gironné .] (Her.) Covered with gyrons, or divided so as to form several gyrons; -- said of an escutcheon.

Gyroscope (jī"ro*skōp) noun [ Greek gy^ros ring, circle + - scope .]
1. A rotating wheel, mounted in a ring or rings, for illustrating the dynamics of rotating bodies, the composition of rotations, etc. It was devised by Professor W. R. Johnson, in 1832, by whom it was called the rotascope .

2. A form of the above apparatus, invented by M. Foucault, mounted so delicately as to render visible the rotation of the earth, through the tendency of the rotating wheel to preserve a constant plane of rotation, independently of the earth's motion.

Gyroscopic (-skŏp"ĭk) adjective Pertaining to the gyroscope; resembling the motion of the gyroscope.

Gyrose (ji*rōs" or jī"rōs) adjective [ See Gyre .] (Botany) Turned round like a crook, or bent to and fro. Loudon.

Gyrostat (jī"ro*stăt) noun [ Greek gy^ros ring, circle + "ista`nai to cause to stand.] (Physics) A modification of the gyroscope, consisting essentially of a fly wheel fixed inside a rigid case to which is attached a thin flange of metal for supporting the instrument. It is used in studying the dynamics of rotating bodies.

Gyrostatic (-stăt"ĭk) adjective (Physics) Of or pertaining to the gyrostat or to gyrostatics.

Gyrostatics (-ĭks) noun (Physics) The doctrine or theory of the gyrostat, or of the phenomena of rotating bodies.

Gyrus (jī"rŭs) noun ; plural Gyri (-rī). [ Latin See Gyre , noun ] A convoluted ridge between grooves; a convolution; as, the gyri of the brain; the gyri of brain coral. See Brain .

Gyse (gīz) noun Guise. [ Obsolete] Chaucer.

Gyte (gīt) adjective Delirious; senselessly extravagant; as, the man is clean gyte . [ Scot.] Sir W. Scott.

Gyve (jīv) noun [ Of Celtic origin; confer W. gefyn , Ir. geibhionn , Gael. geimheal .] A shackle; especially, one to confine the legs; a fetter. [ Written also give .]

Like a poor prisoner in his twisted gyves .
Shak.

With gyves upon his wrist.
Hood.

Gyve transitive verb [ imperfect & past participle Gyved (jīvd); present participle & verbal noun Gyving .] To fetter; to shackle; to chain. Spenser.

I will gyve thee in thine own courtship.
Shak.