three-dimensional

adjective

three-di·​men·​sion·​al ˈthrē-də-ˈmen(t)-sh(ə-)nəl How to pronounce three-dimensional (audio)
 also  -dī-
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 processesL. 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.
Because a world that’s very fast-paced and three-dimensional, people who have been watching football their whole lives will notice the difference. Lexi Carson, HollywoodReporter, 29 Oct. 2025 An iridescent, three-dimensional butterfly reminiscent of the singer's Lover era popped up as the centerpiece of the gift, and a card with the Grammy winner's full name was set below the sparkling figurine. Zoey Lyttle, PEOPLE, 27 Oct. 2025 Sometimes this happens directly, as with her series of three-dimensional sculptures, scattered across the floor of the entire exhibition, that take the form of thin sticks or rods, maybe 2 or 3 feet long and an inch square, made mainly from aluminum. Ray Mark Rinaldi, Denver Post, 27 Oct. 2025 Expansion joints where the road meets the towers and pylons will be replaced to allow for three-dimensional movement in case of a large earthquake. Adrian Rodriguez, Mercury News, 27 Oct. 2025 See All Example Sentences for three-dimensional

Word History

First Known Use

1872, in the meaning defined at sense 1

Time Traveler
The first known use of three-dimensional was in 1872

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Cite this Entry

“Three-dimensional.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/three-dimensional. Accessed 31 Oct. 2025.

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

More from Merriam-Webster on three-dimensional

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