WordReference Random House Unabridged Dictionary of American English © 2025
four-di•men•sion•al
(fôr′di men′shə nl, fōr′-),USA pronunciation adj. [Math.]
- Mathematicsof a space having points, or a set having elements, which require four coordinates for their unique determination.
- 1875–80
'four-dimensional' also found in these entries (note: many are not synonyms or translations):