Word.ws English Dictionary

twin paradox

twin paradox noun: the clock paradox.

Noun

twin paradox (plural twin paradoxes)

  1. (relativity) The clock paradox.

Forms of twin paradox

pluraltwin paradoxes
alternative formtwins paradox

Origin of twin paradox

From the thought experiment conducted by Albert Einstein, in which one of a pair of twins sets off in a spaceship on a trip at high speed, and due to the effects of relativity, his effective clock ticks slower than the twin who remains at home, not encountering relativistic effects, so that when the spacetraveller twin returns home to compare clocks, the spacetraveller will have experienced less elapsed time than the homebody, thus having aged less than the homebody twin and being younger.

Questions about twin paradox

What does twin paradox mean?
Twin paradox means the clock paradox.
What part of speech is twin paradox?
Twin paradox is a noun.
What is the plural of twin paradox?
The plural of twin paradox is twin paradoxes.

Words near twin paradox in the dictionary

  1. twin killing
  2. twin killings
  3. Twin Lakes
  4. twin lens reflex
  5. twin oligohydramnios-polyhydramnios sequence
  6. twin paradox
  7. twin paradoxes
  8. Twin Peaker
  9. Twin Peakers
  10. twin peaks
  11. Twin Peaks Norte

Source and license

Adapted from Wiktionary: twin paradox (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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