three-dimensional

adjective

three-di·​men·​sion·​al ˈthrē-də-ˈmen(t)-sh(ə-)nəl How to pronounce three-dimensional (audio)
also -dī-
Synonyms of three-dimensionalnext
1
: of, relating to, or having three dimensions
2
: giving the illusion of depth or varying distances
used especially of an image or a pictorial representation on a two-dimensional medium when this illusion is enhanced by stereoscopic means
3
: describing or being described in well-rounded completeness
… a three-dimensional analysis of multiple historical processes …L. L. Snyder
4
: true to life : lifelike
three-dimensionality noun

Examples of three-dimensional in a Sentence

an actress who has been acclaimed for her three-dimensional portrayal of the celebrated monarch
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
At the top of the line, the Volvo EX60 P10 Ultra includes a stunning 28-speaker Bowers & Wilkins blasting out 1820 watts of three-dimensional Dolby Atmos sound. Kristin Shaw, ArsTechnica, 20 May 2026 Convex shapes exist in higher-dimensional space, too, like the three-dimensional tetrahedron. Joseph Howlett, Scientific American, 19 May 2026 Now better training methods and new technology—in particular, camera and radar networks that can precisely measure a ball’s movement and create three-dimensional models of a pitcher’s mechanics—have helped pitchers learn to throw harder and harder. Louisa Thomas, New Yorker, 17 May 2026 And, most gratifyingly for a genre that can sometimes feel stuck in retrograde masculinity, a lot of those three-dimensional characters are women. Roxana Hadadi, Vulture, 14 May 2026 See All Example Sentences for three-dimensional

Word History

First Known Use

1870, in the meaning defined at sense 1

Time Traveler
The first known use of three-dimensional was in 1870

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Cite this Entry

“Three-dimensional.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/three-dimensional. Accessed 24 May. 2026.

Kids Definition

three-dimensional

adjective
1
: of, relating to, or having three dimensions (as length, width, and height)
2
: giving the appearance of depth or varying distances

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