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square root
5 dictionary results for: Square root
Dictionary.com Unabridged (v 1.1) - Cite This Source - Share This
square root
–noun
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.

[Origin: 1550–60]
American Heritage Dictionary - Cite This Source - Share This
square root  
n.   A divisor of a quantity that when squared gives the quantity. For example, the square roots of 25 are 5 and -5 because 5 × 5 = 25 and (-5) × (-5) = 25.

WordNet - Cite This Source - Share This
square root

noun
a number that when multiplied by itself equals a given number 

The American Heritage Science Dictionary - Cite This Source - Share This
square root  
A number that, when squared, yields a given number. For example, since 5 × 5 = 25, the square root of 25 (written √25) is 5.

American Heritage New Dictionary of Cultural Literacy, Third Edition - Cite This Source - Share This
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.

Note: The square roots of many numbers, such as three, are irrational numbers.

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