cube root

noun

Mathematics.

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

   The cube root of 64 is 4.

cube root

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 )

cube root

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

Word History and Origins

Origin of cube root¹

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.

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He extracted cube roots and integrated functions of varying complexity.

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

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Youngsters usually learn about square and cube roots of numbers in the early years of secondary school.

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But not much is known about the continued fraction representations of some other pretty easy to describe numbers such as the cube root of 2 and π.

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