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

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

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

From The Guardian • Jan. 2, 2017

For example, the domain and range of the cube root function are both the set of all real numbers.

From Textbooks • Feb. 13, 2015

Figure 21 For the cube root function the domain and range include all real numbers.

From Textbooks • Feb. 13, 2015

The converse proposition, that the cube root of 1728 is 12, asserts that this large aggregate may again be decomposed into the twelve twelves of twelves of pebbles which it consists of.

From A System of Logic: Ratiocinative and Inductive 7th Edition, Vol. II by Mill, John Stuart