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.
Its estimates also rely on detailed three-dimensional images of vessels and their cargo. Josh Hammer, MSNBC Newsweek, 15 Apr. 2025 From Venetian glassmaker Nason Moretti, these glasses are punctuated by a three-dimensional dot at their base that contrast the basic spherical design of the glass. Julia Harrison, Architectural Digest, 15 Apr. 2025 The mystery is three-dimensional: The humongous number of parameters obscuring what the model can do; the open data, internet data, on which the model is based (as opposed to in-house, clean data); and the source, the origin of the model’s development. Gil Press, Forbes.com, 14 Apr. 2025 In reality, though, voice work can be just as challenging as live-action acting, tasking the performer with conveying emotion and creating a three-dimensional person through speech alone. Kate Erbland, IndieWire, 14 Apr. 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

Browse Nearby Words

Cite this Entry

“Three-dimensional.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/three-dimensional. Accessed 22 Apr. 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

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!