motion has definitions from the fields of physics,film,law
1
[ noun ] the use of movements (especially of the hands) to communicate familiar or prearranged signals

Used in print

(William S. Haymond, "Is Distance an Original...)

This would mean , it can readily be seen , that , again , for each new visual experience the tracing motions would have_to be repeated because of the absence of visual imagery .

Often he seems even to have been able to guess correctly , without the tracing motions , solely on the basis of qualitative differences among the blot like things which appeared in his visual experience .

(David Stacton, The Judges of the Secret Court....)

There was something maimed and crazy about its motion that disturbed them .

2
[ noun ] a natural event that involves a change in the position or location of something

Synonyms

movement

Used in print

(Frank Oppenheimer, "Science and Fear-- A Discussion...)

This and other fears of the solar_system have disappeared gradually , first , with the Ptolemaic_system and its built-in concept of periodicity and_then , more firmly , with the Newtonian innovation of an universal force that could account quantitatively for both terrestrial and celestial motions .

(J. F. Vedder, "Micrometeorites", in Francis S. J...)

The Poynting-Robertson effect ( Robertson , 1937 ; Wyatt and Whipple , 1950 ) , which is a retardation of the orbital motion of particles by the relativistic aberration of the repulsive_force of the impinging solar_radiation , causes the dust to spiral into the sun in times much shorter than the age of the Earth .

The mass scale used in Table 5 - 1 was derived on the assumption that the motion of the glowing trail is related_to the momentum transfer to the trail by the meteorite , permitting the calculation of the mass if the velocity is known ( Cook and Whipple , 1958 ) .

(Clayton C. Barbeau, The Ikon....)

Where their sharp edges seemed restless as sea waves thrusting themselves upward in angry motion , Papa-san sat glacier like , his smooth solidity , his very immobility defying all the turmoil about him .

3
[ noun ] a change of position that does not entail a change of location

Examples

"the reflex motion of his eyebrows revealed his surprise" "movement is a sign of life" "an impatient move of his hand" "gastrointestinal motility"

Used in print

(Howard Nemerov, "Themes and Methods: The Early...)

The release , the freedom , involved in loving another is either terribly difficult or_else absolutely impossible ; and the motion toward it brings disaster .

(John Dos Passos, Midcentury....)

She lay under the covers making jabbing motions with her forefinger telling me where to look_for the coffeepot .

4
[ noun ] a state of change

Examples

"they were in a state of steady motion"

Used in print

(Jaroslav Pelikan, The Shape of Death: life, death and...)

Not a circle , then , nor a straight_line , but a spiral represents the shape of death as Irenaeus sees it ; for a spiral has motion as_well_as recurrence .

(Raymond C. Binder et al., editors, Proceedings...)

Continuous motion of the arc contact area at the anode by flow or magnetic_forces .

5
[ noun ] a formal proposal for action made to a deliberative assembly for discussion and vote

Synonyms

question

Examples

"he made a motion to adjourn" "she called for the question"

Used in print

(U.S. Reports. Volume 366. Cases Adjudged in the...)

On motion of the amici_curiae , the court directed that a ruling be obtained from the Commissioner_of_Internal_Revenue as to the federal income_tax consequences of the Government 's plan .

Related terms

proposal

6
[ verb ] show, express or direct through movement

Synonyms

gesticulate gesture

Examples

"He gestured his desire to leave"

Used in print

(Winfred Van Atta, Shock Treatment....)

I laid a tenspot on the bar and motioned to the bartender to serve a round .

7
[ noun ] the act of changing your location from one place to another

Synonyms

move movement

Examples

"police controlled the motion of the crowd" "the movement of people from the farms to the cities" "his move put him directly in my path"

Used in print

(James A. Ibers et al., "Proton magnetic resonance...)

The nuclear dipole effects provide some information on the motions of the hydrogen nuclei , but the symmetry of the **f bond in **f remains in doubt .

8
[ noun ] (law) a request to the court for a ruling to resolve procedural or other issues

Related terms

request motion_in_limine

9
[ noun ] (physics,film) an optical illusion of motion produced by viewing a rapid succession of still pictures of a moving object

Examples

"the cinema relies on apparent motion" "the succession of flashing lights gave an illusion of movement"

Related terms

optical_illusion

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