What is the meaning of fourth dimension?

noun

  • The fourth coordinate that is required (along with three spatial dimensions) to specify a physical event.
WordNet 3.0 © 2006 by Princeton University
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APAWordNet. (2010). fourth dimension. Retrieved September 21, 2026, from http://smartdefine.org/fourth_dimension/definitions/1249855
ChicagoWordNet. 2010. "fourth dimension" http://smartdefine.org/fourth_dimension/definitions/1249855 (accessed September 21, 2026).
HarvardWordNet 2010, fourth dimension, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/fourth_dimension/definitions/1249855>.
MLAWordNet. "fourth dimension" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/fourth_dimension/definitions/1249855>