Dictionary
three-di•men•sion•al
Pronunciation: (thrē'di-men'shu-nl, -dī-), [key]—
adj.
1. having, or seeming to have, the dimension of depth as well as width and height.
2. (esp. in a literary work) fully developed:
The story came alive chiefly because the characters were vividly three-dimensional. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.