Definition of Parallax in English :

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Parallax

see synonyms of parallax

Noun

1. parallax

the apparent displacement of an object as seen from two different points that are not on a line with the object

WordNet Lexical Database for English. Princeton University. 2010.


Parallax

see synonyms of parallax
noun
1. 
an apparent change in the position of an object resulting from a change in position of the observer
2. astronomy
the angle subtended at a celestial body, esp a star, by the radius of the earth's orbit. Annual or heliocentric parallax is the apparent displacement of a nearby star resulting from its observation from the earth. Diurnal or geocentric parallax results from the observation of a planet, the sun, or the moon from the surface of the earth

Collins English Dictionary. Copyright © HarperCollins Publishers


Parallax

see synonyms of parallax
noun
1. 
the apparent change in the position of an object resulting from the change in the direction or position from which it is viewed
2. 
a. 
the amount of angular degree of such change: the parallax of an object may be used in determining its distance from the observer because smaller angles indicate greater distance
b.  Astronomy
the apparent difference in the position of a celestial object with reference to a fixed background when viewed from two distant locations having a triangulated base line equal to the radius of the earth (diurnal parallax or geocentric parallax) or equal to the radius of the earth's orbit (annual parallax or heliocentric parallax)
3. 
the difference between the actual view covered by a camera lens and the apparent view seen through the viewfinder: this may be significant when the object is close to the camera

Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by Houghton Mifflin Harcourt. All rights reserved.


Parallax

see synonyms of parallax
n.
A change in the apparent position of an object relative to more distant objects, caused by a change in the observer's line of sight toward the object.

The American Heritage ® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.