Parallax Definition

părə-lăks
parallaxes
noun
The apparent change in the position of an object resulting from the change in the direction or position from which it is viewed.
Webster's New World
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.
Webster's New World
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)
Webster's New World
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
The angle of seeing of the astronomical unit.
Wiktionary

Other Word Forms of Parallax

Noun

Singular:
parallax
Plural:
parallaxes

Origin of Parallax

  • French parallaxe from Greek parallaxis from parallassein to change para- among para–1 allassein to exchange (from allos other al-1 in Indo-European roots)

    From American Heritage Dictionary of the English Language, 5th Edition

  • Ancient Greek παράλλαξις (parallaksis, “alteration").

    From Wiktionary

Parallax Sentence Examples

  • For the relation of this inequality to the solar parallax see Moon.

  • Brown the value of the solar parallax derived by this method is about 8.773".

  • To obtain the true parallax, the mean parallax of the comparison stars must be added to this relative parallax.

  • Annual parallax is the angle between the direction in which a star appears from the earth and the direction in which it appears from the centre of the sun.

  • It is, the orbit and periodic time is known, and also the parallax, the masses of the stars can be found.

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Words Starting With

PPAPAR

Words Ending With

XAXLAX

Unscrambles

parallax

Words Starting With P and Ending With X

Starts With P & Ends With XStarts With PA & Ends With XStarts With P & Ends With AX

Word Length

8 Letter Words8 Letter Words Starting With P8 Letter Words Ending With X