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English definition of “3-D”

3-D

    /ˌθriːˈdiː/
in a 3-D film or picture, the objects look real and solid instead of looking like a normal flat picture: a 3-D effect These computer games rely on 3-D graphics. The picture looks great because it's in 3-DGeometrical shapesSpherical, circular and annular objectsTypes of film, play, book etc.
(Definition of 3-D from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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