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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

Example Sentences

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See Examples For:

cube root

Mary: The cube root of 2,197 is 13.

From Scientific American ● Nov. 25, 2020

The cube root then will be between 4 and 5.

From Textbooks ● May 6, 2020

More notably, 2017 is the smallest whole number whose cube root begins with ten distinct digits:

From The Guardian ● Jan. 2, 2017

We know that because Because the cube root is easy to find, it is easiest to find the cube root before squaring for this problem.

From Textbooks ● Feb. 13, 2015

I studied algebra this winter, and went as far as cube root.

From Harper's Young People, May 25, 1880 An Illustrated Weekly by Various

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