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1. (n.) parallax
the apparent displacement of an observed object due to a change in the position of the observer.
2. parallax
the apparent angular displacement of a celestial body due to its being observed from the surface instead of from the center of the earth or due to its being observed from the earth instead of from the sun.
3. parallax
the difference between the view of an object as seen through the picture-taking lens of a camera and the view as seen through a separate viewfinder.
Etymology: (1585–95; < Gk parállaxis change =parallak- (s. of parallássein to cause to alternate =para-para -1+allássein to vary, akin to állos other) +-sis -sis)
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| Definition of 'parallax' |
Princeton's WordNet |
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1. (noun) parallax
the apparent displacement of an object as seen from two different points that are not on a line with the object
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| Definition of 'parallax' |
Webster Dictionary |
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1. (noun) parallax
the apparent displacement, or difference of position, of an object, as seen from two different stations, or points of view
2. (noun) parallax
the apparent difference in position of a body (as the sun, or a star) as seen from some point on the earth's surface, and as seen from some other conventional point, as the earth's center or the sun
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| Definitions of 'parallax' |
The Nuttall Encyclopedia |
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1. parallax
an astronomical term to denote an apparent change in the position of a heavenly body due to a change in the position or assumed position of the observer.
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| Definition of 'parallax' |
The Standard Electrical Dictionary |
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1. parallax
The apparent change in position of an object when looked at from two points of view. By looking at an object a few feet distant first with one eye and then with the other, the shifting in apparent position is seen.
In reading the position of an indicator or needle over a scale parallax introduces an error unless the eye is held vertically over the needle. By making the dial of looking- glass and holding the eye so that the reflection of its pupil is bisected by the needle this verticality is ensured.
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Definitions of parallax 
