#312. [Motion in a continued circle.] Rotation. -- N. rotation, revolution, spinning, gyration, turning about an axis, turning aound an axis, circulation, roll; circumrotation[obs], circumvolution, circumgyration[obs]; volutation[obs], circination|, turbination[obs], pirouette, convolution.
verticity|, whir, whirl, eddy, vortex, whirlpool, gurge[obs]; countercurrent; Maelstrom, Charybdis; Ixion.
[rotating air] cyclone; tornado, whirlwind; dust devil.
[rotation of an automobile] spin-out.
axis, axis of rotation, swivel, pivot, pivot point; axle, spindle, pin, hinge, pole, arbor, bobbin, mandrel; axle shaft; gymbal; hub, hub of rotation.
[rotation and translation together] helix, helical motion.
[measure of rotation] angular momentum, angular velocity; revolutions per minute, RPM.
[result of rotation] centrifugal force; surge; vertigo, dizzy round; coriolus force.
[things that go around] carousel, merry-go-round; Ferris wheel; top, dreidel,teetotum[obs]; gyroscope; turntable, lazy suzan; screw, whirligig, rollingstone[obs], water wheel, windmill; wheel, pulley wheel, roulette wheel, potter's wheel, pinwheel, gear; roller; flywheel; jack; caster; centrifuge, ultracentrifuge, bench centrifuge, refrigerated centrifuge, gas centrifuge, microfuge; drill, augur, oil rig; wagon wheel, wheel, tire, tyre[Brit][Brit].
[Science of rotary motion] trochilics[obs].
[person who rotates] whirling dervish.
V. rotate; roll along; revolve, spin; turn round; circumvolve[obs]; circulate; gyre, gyrate, wheel, whirl, pirouette; twirl, trundle, troll, bowl.
roll up, furl; wallow, welter; box the compass; spin like a top, spin like a teetotum|!.
[of an automobile] spin out.
Adj. rotating &c.v.; rotary, rotary; circumrotatory[obs], trochilic[obs], vertiginous, gyratory; vortical, vorticose[obs].
Adv. head over heels, round and round, like a horse in a mill. <-- most of this should go under change (make a 146a)... develop not in change section!! revolution, evolution . revolution = change = #146-->