3D

or 3-D

[three-dee]

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.

Origin of 3D

An Americanism dating back to 1930–35
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019