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four-dimensional

American  
[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.


four-dimensional British  

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

Etymology

Origin of four-dimensional

First recorded in 1875–80

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

In most series, which might employ several over a season, they are interchangeable — which isn’t to say they aren’t valuable, transforming words on a page into a four-dimensional living thing.

From Los Angeles Times Jun. 20, 2026

That change can only occur if the four-dimensional timeline exists in the same way our three-dimensional world exists.

From Science Daily Jun. 8, 2026

This nomination isn't some four-dimensional chess as some are suggesting.

From Salon Nov. 15, 2024

So what does the optimal packing of n four-dimensional balls in four-dimensional space look like?

From Scientific American Jun. 6, 2023

“I paid, like, twenty-eight dollars for this stupid cream that was supposed to boost my radiance. What did I get for it? A four-dimensional zit!”

From "Goodbye Stranger" by Rebecca Stead

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