a quantity of which a given quantity is the square: The quantities +6 and −6 are square roots of 36 since (+6)×(+6)=36 and (−6)×(−6)=36.
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How to use square root in a sentence
Imaginary numbers result from taking the square root of a negative number.Quantum physics requires imaginary numbers to explain reality | Emily Conover | December 15, 2021 | Science News
So as not to give a more prolific pollster too much influence over the average, polls are weighted by one over the square root of the number of polls each pollster conducted in a specific category.
Spinors, which are a kind of square root of vectors, had been introduced in algebra and also in physics as part of Paul Dirac’s theory of the electron.Isadore Singer Transcended Mathematical Boundaries | Daniel S. Freed | March 4, 2021 | Quanta Magazine
Instead of establishing a universal constant, the best they could do was establish a factor that works out to roughly the square root of the dimension the shape lives in.Statistics Postdoc Tames Decades-Old Geometry Problem | Erica Klarreich | March 1, 2021 | Quanta Magazine
Averages are weighted by the square root of the number of polls that a particular pollster conducted for that particular type of election in that particular cycle.Is Tonight’s Presidential Debate Too Late To Shake Up The Race? | Sarah Frostenson (firstname.lastname@example.org) | October 22, 2020 | FiveThirtyEight
In previous tournaments, no one had been able to complete all 10 square root problems within the time limit.
Does a knowledge of botany necessarily involve a knowledge of square root and cube root?Punchinello, Vol. 1, No. 8, May 21, 1870 | Various
I wanted to go through square root, but he said he didn't know anything about square root, and it wasn't any use, anyway.Blue Goose | Frank Lewis Nason
You refused my help in square root, and are taking lessons in painting from Miss Hartwell.Blue Goose | Frank Lewis Nason
Or, once more, the speed of each planet in its orbit is as the inverse square-root of its distance from the sun.Pioneers of Science | Oliver Lodge
A common rule is that the rate rises as the square root of the distance, rather than in proportion to it.Railroads: Rates and Regulations | William Z. Ripley
British Dictionary definitions for square root
a number or quantity that when multiplied by itself gives a given number or quantity: 2 is a square root of 4, usually written √4 or 4 1/2
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 square root
A number that, when squared, yields a given number. For example, since 5 X 5 = 25, the square root of 25 (written √25) is 5.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Cultural definitions for square root
A number that, when multiplied by itself, will result in a given number. The square root of four is two; the square root of one hundred is ten.
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.