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cube root

American

noun

Mathematics.

a quantity of which a given quantity is the cube.

The cube root of 64 is 4.

cube root British

noun

the number or quantity whose cube is a given number or quantity: 2 is the cube root of 8 (usually written ³√ 8 or 8 ^1⁄3 )

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

cube root Scientific

The number whose cube is equal to a given number. For example, the cube root of 125 is 5, since 5 ³ = 125.

Etymology

Origin of cube root

First recorded in 1690–1700

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023