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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Origin of cube root

First recorded in 1690–1700

Words nearby cube root

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

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use cube root in a sentence

It’s known as the cube root law in political science, or the fact that the size of a country’s parliament often hews to the cube root of the nation’s population.
How The House Got Stuck At 435 Seats|Geoffrey Skelley (geoffrey.skelley@abc.com)|August 12, 2021|FiveThirtyEight
Its lower legislative chamber, the House of Commons, has 338 seats, almost exactly in line with the cube root law’s expectation of 335 seats.
How The House Got Stuck At 435 Seats|Geoffrey Skelley (geoffrey.skelley@abc.com)|August 12, 2021|FiveThirtyEight
After all, there is no law that says countries’ parliaments must be the cube root of their population, yet they often are, as the chart below shows.
How The House Got Stuck At 435 Seats|Geoffrey Skelley (geoffrey.skelley@abc.com)|August 12, 2021|FiveThirtyEight
A Republican candidate hoping to win red state support could find a worse team to root for than one from Dallas.
Will Chris Christie Regret His Cowboy Hug?|Matt Lewis|January 5, 2015|DAILY BEAST

Last summer, I spoke with first black supermodel Beverly Johnson about this for The Root.
One Vogue Cover Doesn’t Solve Fashion’s Big Race Problem|Danielle Belton|January 2, 2015|DAILY BEAST
It has grown from a rotten root—striving to replace human judgment with detailed dictates.
Red Tape Is Strangling Good Samaritans|Philip K. Howard|December 27, 2014|DAILY BEAST
The root of the word irony is in the Greek eironeia, “liar.”
Up to a Point: They Made Me Write About Lena Dunham|P. J. O’Rourke|December 13, 2014|DAILY BEAST
Speak to the friends and people you need to root out in life and let that conversation flow.
The Unbearable Whiteness of Protesting|Rawiya Kameir, Judnick Mayard|December 10, 2014|DAILY BEAST
He is what the bill wishes to make for us, a regular root doctor, and will suit the place exactly.
The Book of Anecdotes and Budget of Fun;|Various
But at the root of the unnatural miracles is the natural miracle—the heart of man.
Solomon and Solomonic Literature|Moncure Daniel Conway
You see, I stuck to him like a log to a root, but for the first week or so 'twant no use—not a bit.
The Book of Anecdotes and Budget of Fun;|Various
The same two impulses are said to lie at the root of the elaborate art of personal adornment developed by savages.
Children's Ways|James Sully
This book occasioned some prelates to say that they must root out printing or printing would root out them.
The Every Day Book of History and Chronology|Joel Munsell

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

Scientific 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.