motion : Idioms & Phrases

• noun an academy that gives annual awards for achievements in motion picture production and performance
  

WordNet

• (Mech.), motion with a continually increasing velocity.

Webster 1913

• the motion of a body about a fixed point or fixed axis, as of a planet or pendulum. It is equal to the angle passed over at the point or axis by a line drawn to the body.

Webster 1913

• (Astron.), that point of the heavens toward which the earth is moving in its orbit.

Webster 1913

• noun an optical illusion of motion produced by viewing a rapid succession of still pictures of a moving object
  motion; apparent movement; movement.
  
  • the cinema relies on apparent motion
  • the succession of flashing lights gave an illusion of movement

WordNet

• noun rotary motion of an object around its own axis
  axial rotation; roll.
  
  • wheels in axial rotation

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• noun the random motion of small particles suspended in a gas or liquid
  pedesis; Brownian movement.
  

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• the point which remains at rest, while all the other parts of a body move round it.

Webster 1913

• etc. See under Center, Harmonic, etc.

Webster 1913

• . See Motion.

Webster 1913

• (Mus.), the progression of parts in opposite directions, one ascending, the other descending.

Webster 1913

• a mechanism in which a simple differential combination produces such a change of motion or force as would, with ordinary compound arrangements, require a considerable train of parts. It is used for overcoming great resistance or producing very slow or very rapid motion.

Webster 1913

• that apparent motion of the heavenly body which is due to the earth's diurnal motion.

Webster 1913

• the motion of the earth upon its axis which is described in twentyfour hours.

Webster 1913

E*lec`tro-mo"tion noun

Definitions

1. The motion of electricity or its passage from one metal to another in a voltaic circuit; mechanical action produced by means of electricity.

Webster 1913

Ex*ci`to-mo"tion noun

Definitions

1. (Physiol.) Motion excited by reflex nerves. See Excito-motory.

Webster 1913

• (Mach.), the train of mechanism that gives motion to the part that directly produces the feed in a machine.

Webster 1913

• noun a body remains at rest or in motion with a constant velocity unless acted upon by an external force
  first law of motion; Newton's first law.
  

WordNet

• noun the act of moving forward (as toward a goal)
  advance; forward motion; progression; advancement; procession; progress.
  

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• verb pretend to do something by acting as if one was really doing it
  
  • She isn't really working--she's just going through the motions

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• noun a periodic motion in which the displacement is either symmetrical about a point or is the sum of such motions
  

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• the motion of the point A, of the foot of the perpendicular PA, when P moves uniformly in the circumference of a circle, and PA is drawn perpendicularly upon a fixed diameter of the circle. This is simple harmonic motion. The combinations, in any way, of two more simple harmonic motions, make other kinds of harmonic motion. The motion of the pendulum bob of a clock is approximately simple harmonic motion.

Webster 1913

• (Steam Engin.), a valve gear which is reversed by V hooks.

Webster 1913

I`de*o-mo"tion noun

Definitions

1. (Physiol.) An ideo-motor movement.

Webster 1913

• noun (astronomy) one of three empirical laws of planetary motion stated by Johannes Kepler
  Kepler's law.
  

WordNet

• noun one of three basic laws of classical mechanics
  law of motion; Newton's law.
  

WordNet

• (Physics), three laws defined by Sir Isaac Newton: (1) Every body perseveres in its state of rest or of moving uniformly in a straight line, except so far as it is made to change that state by external force. (2) Change of motion is proportional to the impressed force, and takes place in the direction in which the force is impressed. (3) Reaction is always equal and opposite to action, that is to say, the actions of two bodies upon each other are always equal and in opposite directions.

Webster 1913

Link" mo"tion

Definitions

1. (Steam Engine) A valve gear, consisting of two eccentrics with their rods, giving motion to a slide valve by an adjustable connecting bar, called the link, in such a way that the motion of the engine can be reversed, or the cut-off varied, at will; -- used very generally in locomotives and marine engines. ✍ The illustration shows a link motion for a vertical engine, c representing the shaft carrying two eccentrics, a and b, for making the engine run forward and backward, respectively, their rods e and d being jointed to opposite ends of the slotted link f, in the opening of which is a pin g which is attached to the valve rod h. The valve will receive the motion of the forward eccentric when is in the position shown, and the motion of the backward eccentric when the link is shifted so far to the right as to bring e in line with h, or a compound motion derived from both eccentrics when the link is shifted to intermediate positions, the compound motion causing the valve to cut off the steam at a point determined by the position to which the link may have been shifted.

Webster 1913

• (Mach.), the difference between the motion of a driver and that of a follower, due to the yielding of parts or looseness of joints.

Webster 1913

• verb propose formally; in a debate or parliamentary meeting
  move.
  

WordNet

• (Steam Engine), a crosshead.

Webster 1913

• noun a form of entertainment that enacts a story by sound and a sequence of images giving the illusion of continuous movement
  flick; picture; picture show; pic; movie; motion picture; moving-picture show; film; moving picture.
  
  • they went to a movie every Saturday night
  • the film was shot on location

WordNet

• noun the state of being dizzy or nauseated because of the motions that occur while traveling in or on a moving vehicle
  kinetosis.
  

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• noun an analysis of a specific job in an effort to find the most efficient method in terms of time and effort
  time and motion study; work study; motion study; time study; time-and-motion study.
  

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• noun a camera that takes a sequence of photographs that can give the illusion of motion when viewed in rapid succession
  movie camera; cine-camera.
  

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• noun someone who goes to see movies
  moviegoer.
  

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• noun photographic film several hundred feet long and wound on a spool; to be used in a movie camera
  cine-film; movie film.
  

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• noun the act of making a film
  filming; cinematography.
  

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• noun a form of entertainment that enacts a story by sound and a sequence of images giving the illusion of continuous movement
  flick; picture; picture show; pic; movie; motion picture; moving-picture show; film; moving picture.
  
  • they went to a movie every Saturday night
  • the film was shot on location

WordNet

• noun a body remains at rest or in motion with a constant velocity unless acted upon by an external force
  first law of motion; Newton's first law.
  

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• noun one of three basic laws of classical mechanics
  law of motion; Newton's law.
  

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• noun the rate of change of momentum is proportional to the imposed force and goes in the direction of the force
  Newton's second law; Newton's second law of motion.
  

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• noun action and reaction are equal and opposite
  Newton's third law of motion; Newton's third law; law of action and reaction.
  

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• (Mus.), a kind of motion or progression in which one part ascends or descends, while the other prolongs or repeats the same tone, as in the accompanying example.

Webster 1913

• noun the act of moving forward (as toward a goal)
  advance; forward motion; progression; advancement; procession; progress.
  

WordNet

• noun motion of an object in an orbit around a fixed point
  orbital rotation.
  
  • satellites in orbital rotation

WordNet

• . (a) (Mach.) A jointed system of links, rods, or bars, by which the motion of a reciprocating piece, as a piston rod, may be guided, either approximately or exactly in a straight line . Rankine. (b) (Mus.) The ascending or descending of two or more parts at fixed intervals, as thirds or sixths.

Webster 1913

• noun motion that recurs over and over and the period of time required for each recurrence remains the same
  periodic movement.
  

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• noun motion that continues indefinitely without any external source of energy; impossible in practice because of friction
  

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• (Mech.), an incessant motion conceived to be attainable by a machine supplying its own motive forces independently of any action from without.

Webster 1913

• noun a machine that can continue to do work indefinitely without drawing energy from some external source; impossible under the law of conservation of energy
  

WordNet

• (Mach.), motion which is derived from a driver through unyielding intermediate pieces, or by direct contact, and not through elastic connections, nor by means of friction, gravity, etc.; definite motion.

Webster 1913

• (Mech.), in a body, the relative amount of its motion, as measured by its momentum, varying as the product of mass and velocity.

Webster 1913

• (Mech.), motion alternately backward and forward, or up and down, as of a piston rod.

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• (Mech.), the separation of a single force or motion into two or more which have different directions, and, taken together, are an equivalent for the single one; the opposite of composition of a force.

Webster 1913

• (Mech.), a force which is the result of two or more forces acting conjointly, or a motion which is the result of two or more motions combined. See Composition of forces, under Composition.

Webster 1913

• noun the act of rotating as if on an axis
  rotation.
  
  • the rotation of the dancer kept time with the music

WordNet

• noun the rate of change of momentum is proportional to the imposed force and goes in the direction of the force
  Newton's second law; Newton's second law of motion.
  

WordNet

Self`-mo"tion noun

Definitions

1. Motion given by inherent power, without external impulse; spontaneus or voluntary motion.

   Matter is not induced with self-motion. Cheyne.

Webster 1913

• verb get going; give impetus to
  launch.
  
  • launch a career
  • Her actions set in motion a complicated judicial process

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• noun periodic motion in which the restoring force is proportional to the displacement
  

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• noun a movie that apparently takes place at a slower than normal speed; achieved by taking the film at a faster rate
  

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• (Mach.), an automatic device for arresting the motion of a machine, as when a certain operation is completed, or when an imperfection occurs in its performance or product, or in the material which is supplied to it, etc.

Webster 1913

• a valve motion worked by tappets from a reciprocating part, without an eccentric or cam, used in steam pumps, etc.

Webster 1913

• noun action and reaction are equal and opposite
  Newton's third law of motion; Newton's third law; law of action and reaction.
  

WordNet

• noun an analysis of a specific job in an effort to find the most efficient method in terms of time and effort
  time and motion study; work study; motion study; time study; time-and-motion study.
  

WordNet

• noun an analysis of a specific job in an effort to find the most efficient method in terms of time and effort
  time and motion study; work study; motion study; time study; time-and-motion study.
  

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• noun an analysis of a specific job in an effort to find the most efficient method in terms of time and effort
  time and motion study; work study; motion study; time study; time-and-motion study.
  

WordNet

• the motion of a body when it passes over equal spaces in equal times; equable motion.

Webster 1913

• (Steam Engine), the system of parts by which motion is given to the valve or valves for the distribution of steam in the cylinder. For an illustration of one form of valve gear, see Link motion.

Webster 1913