People wearing special glasses to watch a 3D movie.
A render of a 3D living room.
An example of 3D is a movie in which you are given special glasses to watch.
or 3-D also three-D
- Alternative spelling of 3-D.
3-d - Computer Definition
(2) (3Dimensional) Objects that are rendered visually on paper, film or on screen in three planes representing width, height and depth (X, Y and Z). In the computer, a 2D drawing program can be used to illustrate a 3D object; however, in order to interactively rotate an object in all axes, it must be created as a 3D drawing in a 3D drawing program. See 3D modeling, 3D animation and 3D graphics. Contrast with 2D.