follow Dictionary.com

Is irregardless a word?

four-dimensional

[fawr-di-men-shuh-nl, fohr-] /ˈfɔr dɪˈmɛn ʃə nl, ˈfoʊr-/
adjective, Mathematics
1.
of a space having points, or a set having elements, which require four coordinates for their unique determination.
Origin of four-dimensional
1875-1880
1875-80
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source
Examples from the Web for four-dimensional
Contemporary Examples
Historical Examples
  • Since an event is four-dimensional, the boundary of an event is a three-dimensional manifold.

    The Concept of Nature Alfred North Whitehead
  • You must remember we're working in a four-dimensional medium.

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

  • I regret that it has been necessary for me in this lecture to administer such a large dose of four-dimensional geometry.

    The Concept of Nature Alfred North Whitehead
  • "Well, as far as we know, we live in a four-dimensional universe," the colonel started.

    Crossroads of Destiny Henry Beam Piper
  • Thus there are three types of parallelograms in the four-dimensional manifold of event-particles.

    The Concept of Nature Alfred North Whitehead
  • Attempts have been made to construct drawings and models showing a four-dimensional body.

British Dictionary definitions for four-dimensional

four-dimensional

adjective
1.
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
Cite This Source

Word of the Day

Difficulty index for four-dimensional

Few English speakers likely know this word

Word Value for four

7
8
Scrabble Words With Friends