definitions

cube root

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noun Mathematics.

a quantity of which a given quantity is the cube: The cube root of 64 is 4.

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Nearby words

cubbena, cubby, cubbyhole, cube, cube farm, cube root, cube steak, cube van, cubeb, cubic, cubic centimeter

Origin of cube root

First recorded in 1690–1700
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for cube root

  • How many litres of champagne can be extracted from the cube-root of one turnip?

    This Giddy Globe|Oliver Herford

  • Adieu, beloved grammar; and farewell, most fragrant extract of cube-root, as well as birch-oil.

    The Old Woman Who Lived in a Shoe|Amanda Minnie Douglas

  • I'd rather have let cube-root go and have kept more of my imagination.

    August First|Mary Raymond Shipman Andrews and Roy Irving Murray

British Dictionary definitions for cube root

cube root

noun

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

Science definitions for cube root

cube root

The number whose cube is equal to a given number. For example, the cube root of 125 is 5, since 53 = 125.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.