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

There is no restriction on for because you can take the cube root of any real number.

From Textbooks • Dec. 21, 2021

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

From Scientific American • Nov. 25, 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

Definition of a cubic number and a cube root.

From The Earliest Arithmetics in English by Steele, Robert