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cube root

American  

noun

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

    The cube root of 64 is 4.


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 )

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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.


Etymology

Origin of cube root

First recorded in 1690–1700

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

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

From Scientific American Nov. 25, 2020

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

From The Guardian Jan. 2, 2017

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

From Textbooks Feb. 13, 2015

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

From Textbooks Feb. 13, 2015

Definition of a cubic number and a cube root.

From The Earliest Arithmetics in English by Steele, Robert

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