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.
The new findings show that, under the right conditions, the molecule can reorganize itself while maintaining its three-dimensional orientation. Prabhat Ranjan Mishra, Interesting Engineering, 8 Jan. 2026 The three-dimensional trade route There’s one final wrinkle here, and that’s the three-dimensional deal aspect. Thomas Drance, New York Times, 6 Jan. 2026 Instead of just printing the face of the dinosaur, the face line of the ocular nose tendon symbolizing the rabidity of ‘Dinozaurus’ is inserted inside the mesh to reproduce the three-dimensional shape. Riley Jones, Footwear News, 6 Jan. 2026 The singer's sheer, plunging corset—which came from the Dutch designer's fall 2025 couture collection—featured three-dimensional, ribbon-like elements. Hannah Malach, InStyle, 5 Jan. 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 14 Jan. 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

More from Merriam-Webster on three-dimensional

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