3D

American

[three-dee] / ˈθriˈdi /

Or 3-D

adjective

of, relating to, or representing something in three dimensions; three-dimensional.

3D movies.

noun

a three-dimensional form or appearance.

My dreams are always in 3D.

Etymology

Origin of 3D

An Americanism dating back to 1950–55

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

"Our device can hide a complex 3D object in an infinite number of directions while keeping the temperature inside stable and protected."

From Science Daily ● Oct. 26, 2026

Despite the advent of AI and 3D printing, many people here continue making the paper by hand.

From Barron's ● Oct. 21, 2026

The researchers undertook a CT scan of the fossil, creating a 3D model of this part of the skull.

From BBC ● Oct. 14, 2026

This generated approximately 7 million measurements, which scientists combined into a comprehensive 3D reconstruction using machine learning tools developed specifically for the project.

From Science Daily ● Oct. 13, 2026

The 3D hologram spins like a massive blue-and-green marble.

From "The Last Cuentista" by Donna Barba Higuera

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023