[three-di-men-shuh-nl, -dahy-]


having, or seeming to have, the dimension of depth as well as width and height.
(especially in a literary work) fully developed: The story came alive chiefly because the characters were vividly three-dimensional.

Origin of three-dimensional

First recorded in 1890–95
Related formsthree·di·men·sion·al·i·ty, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for three-dimensional

Contemporary Examples of three-dimensional

Historical Examples of three-dimensional

  • The three-dimensional picture had been rolled up into the corner.

    Spacemen Never Die!

    Morris Hershman

  • We see only three-dimensional sections of them, which are spheres.

    The Einstein See-Saw

    Miles John Breuer

  • It was a three-dimensional, thousand-mile spread of fantasy infernal.

    Wandl the Invader

    Raymond King Cummings

  • It is no more the fourth dimension than a shadow is three-dimensional.

    Hellhounds of the Cosmos

    Clifford Donald Simak

  • This was an instrument with a three-dimensional screen as its heart.

    The Jupiter Weapon

    Charles Louis Fontenay

British Dictionary definitions for three-dimensional


three-D or 3-D


of, having, or relating to three dimensionsthree-dimensional space
(of a film, transparency, etc) simulating the effect of depth by presenting slightly different views of a scene to each eye
having volume
lifelike or real
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012