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.

From Scientific American

He extracted cube roots and integrated functions of varying complexity.

From Literature

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

From The Guardian

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

From BBC

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.

From Scientific American