three-dimensional

adjective

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

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.
By clearing the technical barrier of spatial geometry first, the team plans to combine this encoding layer with other quantum equations to calculate three-dimensional nuclear systems that standard supercomputers still struggle to solve. Aman Tripathi, Interesting Engineering, 4 Sep. 2026 How world maps compare Maps project a three-dimensional sphere onto a two-dimensional flat space. Jewel Bright, NPR, 4 Sep. 2026 To overcome these multi-axis motion challenges, the Tsubaki KabelSchlepp Robotrax System provides a specialized three-dimensional cable carrier engineered specifically for complex robotic motion. IEEE Spectrum, 3 Sep. 2026 The scientists also want to gain a more detailed understanding of the three-dimensional structure of the decagon's clouds, hazes, winds and temperatures. Charles Q. Choi, Space.com, 2 Sep. 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

Browse Nearby Words

Cite this Entry

“Three-dimensional.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/three-dimensional. Accessed 7 Sep. 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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