[fawr-di-men-shuh-nl, fohr-]

adjective Mathematics.

of a space having points, or a set having elements, which require four coordinates for their unique determination.

Origin of four-dimensional

First recorded in 1875–80 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for four-dimensional

Contemporary Examples of four-dimensional

  • The Universe we inhabit seems to be four-dimensional: the three dimensions of height, length, and depth, along with time.

    The Daily Beast logo
    Is the Cosmos Just a Big Hologram?

    Matthew R. Francis

    August 31, 2014

Historical Examples of four-dimensional

  • You must remember we're working in a four-dimensional medium.


    Clifford Donald Simak

  • Neither has matter nor life any inclination or potency to behave in a four-dimensional manner.

    The Mystery of Space

    Robert T. Browne

  • Apparently sleep is unnecessary in the higher—the four-dimensional—body.

    Day and Night Stories

    Algernon Blackwood

  • "Well, as far as we know, we live in a four-dimensional universe," the colonel started.

    Crossroads of Destiny

    Henry Beam Piper

  • Our material universe is merely the intersection of tangled world lines of geodesics in a four-dimensional continuum.

British Dictionary definitions for four-dimensional



having or specified by four dimensions, esp the three spatial dimensions and the dimension of timea 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