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.

It still makes most of its money from video games, but some fans have been upset at the lack of a brand new 3D Mario game this year.

From BBC • Apr. 1, 2026

New findings from his lab show that the genome's 3D organization is not fixed.

From Science Daily • Mar. 31, 2026

Costs are rising for everything from construction to hygienists to new 3D imaging equipment.

From The Wall Street Journal • Mar. 26, 2026

The base is expected to be built with bricks made on-site from lunar soil using 3D printers.

From Barron's • Mar. 26, 2026

We put away the 3D glasses and get out.

From "What If It's Us" by Becky Albertalli and Adam Silvera

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