square root

number which is the total of a given number to the second power (i.e. the square root of 36 is 6 because 6 to the second power = 36)

In mathematics, a square root of a number x is a number r such that , or in words, a number r whose square (the result of multiplying the number by itself) is x. Every non-negative real number x has a unique non-negative square root, called the principal square root and denoted with a radical symbol as . For example, the principal square root of 9 is 3, denoted , because . The other square root of 9 is −3.
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Noun
1. a number that when multiplied by itself equals a given number
(hypernym) root

square root
danh từ số căn bình phương
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square-root
danh từ (toán học) căn bậc hai
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n. จำนวนรากกำลังสอง