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- Dictionarythree-dimensional/ˌθriːdɪˈmɛnʃ(ə)n(ə)l/
adjective
- 1. having or appearing to have length, breadth, and depth: "a three-dimensional object"
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adjective
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In geometry, a three-dimensional space (3D space, 3-space or, rarely, tri-dimensional space) is a mathematical space in which three values (coordinates) are required to determine the position of a point. Most commonly, it is the three-dimensional Euclidean space, that is, the Euclidean space of dimension three, which models physical space. More general three-dimensional spaces are called 3-manifol... Wikipedia