four-dimensional

American

[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.

four-dimensional British

adjective

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:

four-dimensional

To reconstruct how stress changed over centuries, the researchers developed a physics-based, four-dimensional earthquake cycle model.

From Science Daily ● Oct. 2, 2026

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

Plotting the car's position at every instant ultimately requires four-dimensional spacetime.

From Science Daily ● Nov. 2, 2025

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

From Salon ● Nov. 15, 2024

In such a case, we would have generated a four-dimensional hypercube, also called a tesseract.

From "Cosmos" by Carl Sagan

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023