four-dimensional
adjective/ˌfɔː daɪˈmenʃənl/, /ˌfɔː dɪˈmenʃənl/
/ˌfɔːr daɪˈmenʃənl/, /ˌfɔːr dɪˈmenʃənl/
- having four dimensions, usually length, width, depth and time
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four-dimensional
Definition of four-dimensional adjective from the Oxford Advanced Learner's Dictionary