Dictionary

parallax

noun par·al·lax \ˈpa-rə-ˌlaks\

Definition of PARALLAX

:  the apparent displacement or the difference in apparent direction of an object as seen from two different points not on a straight line with the object; especially :  the angular difference in direction of a celestial body as measured from two points on the earth's orbit

Origin of PARALLAX

Middle French parallaxe, from Greek parallaxis, from parallassein to change, from para- + allassein to change, from allos other
First Known Use: 1580

Other Astronomy Terms

gibbous, nadir, nebulous, penumbra, retrograde, sidereal, syzygy, wane, wax, zenith
Medical Dictionary

parallax

noun par·al·lax \ˈpar-ə-ˌlaks\

Medical Definition of PARALLAX

:  the apparent displacement or the difference in apparent direction of an object as seen from two different points not on a straight line with the object <motion parallax governs the way objects appear to move when the eyes or head are shifted—Edmund Andrews>
July 06, 2015
categorical Hear it
absolute or relating to a category
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