- the number or quantity whose cube is a given number or quantity: 2 is the cube root of 8 (usually written 3√ 8 or 81⁄3)
WordReference Random House Learner's Dictionary of American English © 2026
ˈcube ˈroot, n. [countable]
WordReference Random House Unabridged Dictionary of American English © 2026- Mathematicsa quantity of which a given quantity is the cube: The cube root of 64 is 4.
cube′ root′, [Math.]
- Mathematicsa quantity of which a given quantity is the cube:The cube root of 64 is 4.
- 1690–1700
Collins Concise English Dictionary © HarperCollins Publishers::
cube root n
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'cube root' also found in these entries (note: many are not synonyms or translations):
