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Parallax
//ˈpæɹ.əˌlæks// noun, verb
Definitions
Noun
- 1 An apparent shift in the position of two stationary objects relative to each other as viewed by an observer, due to a change in observer position. countable, uncountable
"[…] Heliocentrick places, to which the Parallaxes being applied, give the Geocentrick."
- 2 the apparent displacement of an object as seen from two different points that are not on a line with the object wordnet
- 3 The angle of seeing of the astronomical unit. countable, uncountable
Verb
- 1 To measure (a distance) based on parallax observations. transitive
- 2 To produce an illusion of levels of distance by shifting layers at different rates.
Etymology
Etymology 1
From Middle French parallaxe, from Ancient Greek παράλλαξις (parállaxis, “alteration”) from παραλλάσσω (parallássō, “to cause to alternate”) from ἀλλάσσω (allássō, “to alter”) from ἄλλος (állos, “other”). By surface analysis, par- + all- + -ax.
Etymology 2
From Middle French parallaxe, from Ancient Greek παράλλαξις (parállaxis, “alteration”) from παραλλάσσω (parallássō, “to cause to alternate”) from ἀλλάσσω (allássō, “to alter”) from ἄλλος (állos, “other”). By surface analysis, par- + all- + -ax.
See also for "parallax"
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