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A lid, plug, or cover, applied to an aperture so that by its movement, as by swinging, lifting and falling, sliding, turning, or the like, it will open or close the aperture to permit or prevent passage, as of a fluid.

, often cut into some fanciful form, and placed upon a perpendicular axis around which it moves freely. Aye undiscreet, and changing as a vane. Chaucer.

Causing movement in the walls of vessels; as, the vasomotor mechanisms; the vasomotor nerves, a system of nerves distributed over the muscular coats of the blood vessels. Vasomotor center, the chief dominating or general center which supplies all the unstriped muscles of the arterial system with motor nerves, situated…

Movement of vehicles.

To move spasmodically; to twitch; as, a nerve vellicates.

ed services, or by hallowed associations. We find a secret awe and veneration for one who moves about us in regular and illustrious course of virtue. Addison.

elonging to Veretillum and allied genera, of the tribe Pennatulacea. The whole colony can move about as if it were a simple animal.

ming of the head; an affection of the head in which objects, though stationary, appear to move in various directions, and the person affected finds it difficult to maintain an erect posture; giddiness. Quian.

To brandish; to move to and fro; to swing; as, to vibrate a sword or a staff.

f victual. Knolles. There came a fair-hair'd youth, that in his hand Bare victual for the movers. Tennyson. Short allowance of victual. Longfellow.

f that point indefinitely near to the first, to which the point is conceived to have been moved, without disturbing the equilibrium of the system, or the connections of its parts with each other. Strictly speaking, it is not a velocity but a length. -- Virtual work. (Mech.) See Virtual moment, above.…

Energy or influence operating without contact of the material or sensible substance. She moves the body which she doth possess, Yet no part toucheth, but by virtue's touch. Sir. J. Davies.

A sudden movement to avoid a thrust.

ubject to, or regulated by, the will; as, the voluntary motions of an animal, such as the movements of the leg or arm (in distinction from involuntary motions, such as the movements of the heart); the voluntary muscle fibers, which are the agents in voluntary motion.

un or a planet. Descartes attempted to account for the formation of the universe, and the movements of the bodies composing it, by a theory of vortices.

To move staggeringly or unsteadily from one side to the other; to vacillate; to move the manner of a rotating disk when the axis of rotation is inclined to that of the disk; -- said of a turning or whirling body; as, a top wabbles; a buzz saw wabbles. wobble.

rt steps, swaying the body from one side to the other, like a duck or very fat person; to move clumsily and totteringly along; to toddle; to stumble; as, a child waddles when he begins to walk; a goose waddles. Shak. She drawls her words, and waddles in her pace. Young.

To go; to move forward. [Obs.] When might is joined unto cruelty, Alas, too deep will the venom wade. Chaucer. Forbear, and wade no further in this speech. Old Play.

To cause to move or go in a wavy manner, or by the impulse of waves, as of water or air; to bear along on a buoyant medium; as, a balloon was wafted over the channel. A gentle wafting to immortal life. Milton. Speed the soft intercourse from soul to soul, And waft a sigh from Indus to the pole. Pope.…

To move one way and the other with quick turns; to shake to and fro; to move vibratingly; to cause to vibrate, as a part of the body; as, to wag the head. No discerner durst wag his tongue in censure. Shak. Every one that passeth thereby shall be astonished, and wag his head. Jer. xviii. 16.