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.
Some of them were shocked that my Persona was a fully three-dimensional representation of my face and not a live video feed. Anshel Sag, Forbes.com, 3 Sep. 2025 The three-dimensional sculpture covered in moss and red flowers had intricate facial details and a headband made of twigs. Linda Girardi, Chicago Tribune, 1 Sep. 2025 Therefore, researchers were stuck with indirect evidence from ripples on the surface or from simulations, never able to see the actual three-dimensional movement inside a flowing pile. Rupendra Brahambhatt, Interesting Engineering, 31 Aug. 2025 After the main meal, servers come around with a display platter of various desserts as a three-dimensional visual menu. Camila Pedrosa, Sacbee.com, 29 Aug. 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 5 Sep. 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

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