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A wheel-like joint of the stem of a fossil crinoid.

The curve described by any point in a wheel rolling on a line; a cycloid; a roulette; in general, the curve described by any point fixedly connected with a moving curve while the moving curve rolls without slipping on a second fixed curve, the curves all being in one plane. Cycloids, epicycloids, hypocycloids, cardioid…

A contrivance for computing the revolutions of a wheel; an odometer.

nally on one side; a long tray; also, a wooden channel for conveying water, as to a mill wheel.

A small wheel, as of a vehicle; specifically (Ord.), a small strong wheel, as of wood or iron, for a gun carriage.

A small wheel or caster. Hudibras.

A low bed on wheels, that may be pushed under another bed; a trundle-bed. "His standing bed and truckle-bed." Shak.

A round body; a little wheel.

A low bed that is moved on trundles, or little wheels, so that it can be pushed under a higher bed; a truckle-bed; also, sometimes, a simiral bed without wheels. Chapman.

One of the disks forming the ends of a lantern wheel or pinion.

enereal disease, by sweating in a close place, or tub, and fasting. [Obs.] Shak. -- Tub wheel, a horizontal water wheel, usually in the form of a short cylinder, to the circumference of which spiral vanes or floats, placed radially, are attached, turned by the impact of one or more streams of water, conducted so as to…

A movable obstruction in a lock, consisting of a lever, latch, wheel, slide, or the like, which must be adjusted to a particular position by a key or other means before the bolt can be thrown in locking or unlocking.

A cart or carriage with two wheels, which accompanies troops or artillery, to convey the tools of pioneers, cartridges, and the like.

A rare element of the chromium group found in certain minerals, as wolfram and scheelite, and isolated as a heavy steel-gray metal which is very hard and infusible. It has both acid and basic properties. When alloyed in small quantities with steel, it greatly increases its hardness. Symbol W (Wolframium). Atomic weight…

A water wheel, commonly horizontal, variously constructed, but usually having a series of curved floats or buckets, against which the water acts by its impulse or reaction in flowing either outward from a central chamber, inward from an external casing, or from above downward, etc.; -- also called turbine wheel.…

apart and with a characteristic rise on the ball of the foot, followed by a drop upon the heel. The original form, owning to the positions assumed by the dancers, is offensively suggestive. Similar dances are the bunny hug and grizzly bear, so called in allusion to the movements and the positions assumed by the partner…

as to present other sides in given directions; to make to face otherwise; as, to turn a wheel or a spindle; to turn the body or the head. Turn the adamantine spindle round. Milton. The monarch turns him to his royal guest. Pope.

r even twenty stories and sometimes one hundred and twenty cubits high, usually moved on wheels, and employed in approaching a fortified place, for carrying soldiers, engines, ladders, casting bridges, and other necessaries.

rapidly with the fingers. See ruddy maids, Some taught with dexterous hand to twirl the wheel. Dodsley. No more beneath soft eve's consenting star Fandango twirls his jocund castanet. Byron.

A drum-shaped wheel with spirally curved partitions by which water is raised to the axis when the wheel revolves with the lower part of the circumference submerged, -- used for raising water, as for irrigation.