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cube root

noun, Mathematics.
a quantity of which a given quantity is the cube:
The cube root of 64 is 4.
Origin of cube root
1690-1700 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2016.
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Examples from the Web for cube-root
Historical Examples
  • 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
  • How many litres of champagne can be extracted from the cube-root of one turnip?

    This Giddy Globe Oliver Herford
  • 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

the number or quantity whose cube is a given number or quantity: 2 is the cube root of 8 (usually written ³√ 8 or 81⁄3)
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
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cube-root in Science
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 © 2002. Published by Houghton Mifflin. All rights reserved.
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