The Collaborative International Dictionary of English v.0.48:
3-D \3-D\ n. 1. a movie with images having three dimensional form or appearance. Syn: three-D, 3D [WordNet 1.5]WordNet (r) 3.0 (2006):
3D n 1: a movie with images having three dimensional form or appearance [syn: three-D, 3-D, 3D] 2: having a three-dimensional form or appearance; "aren't dreams always in 3-D?" [syn: three-D, 3-D, 3D]