Definition of velocity

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Velocity (n.) Rate of motion; the relation of motion to time, measured by the number of units of space passed over by a moving body or point in a unit of time, usually the number of feet passed over in a second. See the Note under Speed..

Lern More About Velocity

Rotation :: Rotation (a.) Pertaining to, or resulting from, rotation; of the nature of, or characterized by, rotation; as, rotational velocity..
Poundal :: Poundal (n.) A unit of force based upon the pound, foot, and second, being the force which, acting on a pound avoirdupois for one second, causes it to acquire by the of that time a velocity of one foot per second. It is about equal to the weight of half an ounce, and is 13,825 dynes..
Rhysimeter :: Rhysimeter (n.) An instrument, acting on the principle of Pitot's tube, for measuring the velocity of a fluid current, the speed of a ship, etc..
Whur :: Whur (n.) A humming or whirring sound, like that of a body moving through the air with velocity; a whir..
Chronoscope :: Chronoscope (n.) An instrument for measuring minute intervals of time; used in determining the velocity of projectiles, the duration of short-lived luminous phenomena, etc..
Rapidity :: Rapidity (n.) The quality or state of being rapid; swiftness; celerity; velocity; as, the rapidity of a current; rapidity of speech; rapidity of growth or improvement..
Deaden :: Deaden (a.) To lessen the velocity or momentum of; to retard; as, to deaden a ship's headway..
Cycloscope :: Cycloscope (n.) A machine for measuring at any moment velocity of rotation, as of a wheel of a steam engine..
Velocity :: Velocity (n.) Rate of motion; the relation of motion to time, measured by the number of units of space passed over by a moving body or point in a unit of time, usually the number of feet passed over in a second. See the Note under Speed..
Fleetness :: Fleetness (n.) Swiftness; rapidity; velocity; celerity; speed; as, the fleetness of a horse or of time..
Myograph :: Myograph (n.) An instrument for determining and recording the different phases, as the intensity, velocity, etc., of a muscular contraction..
Swift :: Swift (v. i.) Moving a great distance in a short time; moving with celerity or velocity; fleet; rapid; quick; speedy; prompt.
Swiftness :: Swiftly (adv.) In a swift manner; with quick motion or velocity; fleetly.
Translation :: Translation (n.) Motion in which all the points of the moving body have at any instant the same velocity and direction of motion; -- opposed to rotation.
Fleet :: Fleet (v. i.) Swift in motion; moving with velocity; light and quick in going from place to place; nimble.
Backlash :: Backlash (n.) The distance through which one part of connected machinery, as a wheel, piston, or screw, can be moved without moving the connected parts, resulting from looseness in fitting or from wear; also, the jarring or reflex motion caused in badly fitting machinery by irregularities in velocity or a reverse of motion..
Libration Point :: Libration point (n.) any one of five points in the plane of a system of two large astronomical bodies orbiting each other, as the Earth-moon system, where the gravitational pull of the two bodies on an object are approximately equal, and in opposite directions. A solid object moving in the same velocity and direction as such a libration point will remain in gravitational equilibrium with the two bodies of the system and not fall toward either body..
Spina Bifida :: Spin (n.) Velocity of rotation about some specified axis.
Electro-ballistics :: Electro-ballistics (n.) The art or science of measuring the force or velocity of projectiles by means of electricity.
Fluxion :: Fluxion (n.) A method of analysis developed by Newton, and based on the conception of all magnitudes as generated by motion, and involving in their changes the notion of velocity or rate of change. Its results are the same as those of the differential and integral calculus, from which it differs little except in notation and logical method..
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