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[fawr-di-men-shuh-nl, fohr-] /ˈfɔr dɪˈmɛn ʃə nl, ˈfoʊr-/
adjective, Mathematics
of a space having points, or a set having elements, which require four coordinates for their unique determination.
Origin of four-dimensional
1875-80 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for four-dimensional
  • Instead of string theory, four-dimensional tetrahedrons.
  • So far, they have succeeded in creating a stable four-dimensional spacetime, when viewed at large distances.
  • Stratigraphy, in essence, is the science aimed at unraveling this four-dimensional puzzle.
  • Same thing with the universe: it's a closed four-dimensional shape with a finite volume in three dimensions but no boundary.
British Dictionary definitions for four-dimensional


having or specified by four dimensions, esp the three spatial dimensions and the dimension of time: a four-dimensional continuum
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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