Square root

noun

Word Frequency: 2.7

Definitions

1.nounThe number which, when squared, yields another number.

"The square roots of 4 are 2 and −2, the square root of 0 is 0, and the square roots of −4 are 2i and −2i."

2.nounThe positive number which, when squared, yields another number; the principal square root.

"The square root of 4 is 2. No negative real square roots exist. Negative numbers have no real square roots."

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