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parallax

  • noun
  • /ˈpæɹ.əˌlæks/

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.

Other meanings

  1. The angle of seeing of the astronomical unit.

Related words

  • parallactic
  • celebration parallax
  • cognitive parallax
  • motion parallax
  • parallax motion
  • parallax second
  • parsec

Word history

From Ancient Greek "παράλλαξις" (alteration).

Where this comes from

This definition is adapted from “parallax” on Wiktionary, by its contributors, published under CC BY-SA 4.0. This page is published under the same licence.