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A celestial body which revolves about the sun in an orbit of a moderate degree of eccentricity. It is distinguished from a comet by the absence of a coma, and by having a less eccentric orbit. See Solar system.

here which coincide with the earth's axis produced, and about which the heavens appear to revolve.

To think on, and revolve in the mind, beforehand; to contrive and design previously; as, to premeditate robbery. With words premeditated thus he said. Dryden.

tical. -- Prime-vertical transit instrument, a transit instrument the telescope of which revolves in the plane of the prime vertical, -- used for observing the transit of stars over this circle.

To cast forward or revolve in the mind; to contrive; to devise; to scheme; as, to project a plan. What sit then projecting peace and war Milton.

steam vessel, usually consisting of a screw placed in the stern under water, and made to revolve by an engine; a propeller wheel.

consists essentially of an upright shaft armed with projecting knives, which is caused to revolve in a hollow cylinder, tub, or vat, in which the clay is placed.

traight line proceeding from a given point, or fixed pole, about which it is conceived to revolve.

g a drill by hand, consisting of a hand lever carrying at one end a drill holder which is revolved by means of a ratchet wheel and pawl, by swinging the lever back and forth. -- Ratchet wheel (Mach.), a circular wheel having teeth, usually angular, with which a reciprocating pawl engages to turn the wheel forward, or…

es are held in, and discharged from, a revolving chamber at the breech of the barrel. See Revolver, and Magazine gun, under Magazine. -- Repeating instruments (Astron. & Surv.), instruments for observing angles, as a circle, theodolite, etc., so constructed that the angle may be measured several times in succession, a…

Inclined to revolve things in the mind; meditative. [Obs.] Feltham.

That may be revolved.

year. Shelley. Revolving seasons, fruitless as they pass. Cowper. Revolving firearm. See Revolver. -- Revolving light, a light or lamp in a lighthouse so arranged as to appear and disappear at fixed intervals, either by being turned about an axis so as to show light only at intervals, or by having its light occasiona…

To cause to revolve by turning over and over; to move by turning on an axis; to impel forward by causing to turn over and over on a supporting surface; as, to roll a wheel, a ball, or a barrel.

To turn, as a wheel, round an axis; to revolve.

To turn, as a wheel; to revolve on an axis or pivot; as, a wheel runs swiftly round.

A secondary planet which revolves about another planet; as, the moon is a satellite of the earth. See Solar system, under Solar. Satellite moth (Zoöl.), a handsome European noctuid moth (Scopelosoma satellitia).

tinuous spiral groove, between one turn and the next, -- used chiefly for producing, when revolved, motion or pressure in the direction of its axis, by the sliding of the threads of the cylinder in the grooves between the threads of the perforation adapted to it, the former being distinguished as the external, or male…

The outer frame or case of a block within which the sheaves revolve.

other firearm which can be fired six times without reloading especially, a six-chambered revolver. [Colloq. U.S.]