cube root

American  

noun

Mathematics.

1. a quantity of which a given quantity is the cube.

   The cube root of 64 is 4.

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cube root British  

noun

1. 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 )

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cube root Scientific  

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

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Etymology

Origin of cube root

First recorded in 1690–1700

Example Sentences

See Examples For:

cube root

Each of the numbers so large you can’t name also has a square root, a cube root and so on, ad infinitum.

From Scientific American ● Apr. 20, 2020

Remember that a fractional exponent is calling for the nth root of the number thus an exponent of 1/3 is the cube root of the number.

From Textbooks ● Nov. 29, 2017

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

From The Guardian ● Jan. 2, 2017

Since we say that 2 is the cube root of 8.

From Textbooks ● Feb. 13, 2015

Illustrations of the former are the bonds between cube root, hectare, brokerage, commission, indorsement, vertex, adjacent, nonagon, sector, draft, bill of exchange, and their meanings.

From The Psychology of Arithmetic by Thorndike, Edward L. (Edward Lee)