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

Whirl :: Whirl (v. t.) To turn round rapidly; to cause to rotate with velocity; to make to revolve.
Swift :: Swift (v. i.) Moving a great distance in a short time; moving with celerity or velocity; fleet; rapid; quick; speedy; prompt.
Electro-ballistics :: Electro-ballistics (n.) The art or science of measuring the force or velocity of projectiles by means of electricity.
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..
Myograph :: Myograph (n.) An instrument for determining and recording the different phases, as the intensity, velocity, etc., of a muscular contraction..
Whirl :: Whirl (v. i.) To be turned round rapidly; to move round with velocity; to revolve or rotate with great speed; to gyrate.
Hydrometer :: Hydrometer (n.) An instrument, variously constructed, used for measuring the velocity or discharge of water, as in rivers, from reservoirs, etc., and called by various specific names according to its construction or use, as tachometer, rheometer, hydrometer, pendulum, etc.; a current gauge..
Carronade :: Carronade (n.) A kind of short cannon, formerly in use, designed to throw a large projectile with small velocity, used for the purpose of breaking or smashing in, rather than piercing, the object aimed at, as the side of a ship. It has no trunnions, but is supported on its carriage by a bolt passing through a loop on its under side..
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.
Whisk :: Whisk (v. i.) To move nimbly at with velocity; to make a sudden agile movement.
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..
Instantaneous :: Instantaneous (a.) At or during a given instant; as, instantaneous acceleration, velocity, etc..
Pitot''s Tube :: Pitot's tube () A bent tube used to determine the velocity of running water, by placing the curved end under water, and observing the height to which the fluid rises in the tube; a kind of current meter..
Rheometer :: Rheometer (n.) An instrument for measuring the velocity of the blood current in the arteries.
Hydrometrical :: Hydrometrical (a.) Of or pertaining to measurement of the velocity, discharge, etc., of running water..
Anemometer :: Anemometer (n.) An instrument for measuring the force or velocity of the wind; a wind gauge.
Slip :: Slip (n.) The motion of the center of resistance of the float of a paddle wheel, or the blade of an oar, through the water horozontally, or the difference between a vessel's actual speed and the speed which she would have if the propelling instrument acted upon a solid; also, the velocity, relatively to still water, of the backward current of water produced by the propeller..
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..
Fleet :: Fleet (v. i.) Swift in motion; moving with velocity; light and quick in going from place to place; nimble.
Swiftness :: Swiftly (adv.) In a swift manner; with quick motion or velocity; fleetly.
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