What does square root mean?

Definitions for square root

Here are all the possible meanings and translations of the word square root.

Princeton's WordNet

  1. square root(noun)

    a number that when multiplied by itself equals a given number


  1. square root(Noun)

    Of a number, another number which, when squared, yields the original number; sometimes constrained to be the positive number when two solutions exist.


  1. Square root

    In mathematics, a square root of a number a is a number y such that y² = a, or, in other words, a number y whose square is a. For example, 4 and −4 are square roots of 16 because 4² = ² = 16. Every non-negative real number a has a unique non-negative square root, called the principal square root, which is denoted by, where √ is called the radical sign or radix. For example, the principal square root of 9 is 3, denoted, because 3² = 3 × 3 = 9 and 3 is non-negative. The term whose root is being considered is known as the radicand. The radicand is the number or expression underneath the radical sign, in this example 9. Every positive number a has two square roots:, which is positive, and, which is negative. Together, these two roots are denoted . Although the principal square root of a positive number is only one of its two square roots, the designation "the square root" is often used to refer to the principal square root. For positive a, the principal square root can also be written in exponent notation, as a1/2. Square roots of negative numbers can be discussed within the framework of complex numbers. More generally, square roots can be considered in any context in which a notion of "squaring" of some mathematical objects is defined

Suggested Resources

  1. square root

    The square root symbol -- In this Symbols.com article you will learn about the meaning of the square root symbol and its characteristic.


  1. Chaldean Numerology

    The numerical value of square root in Chaldean Numerology is: 2

  2. Pythagorean Numerology

    The numerical value of square root in Pythagorean Numerology is: 5

Sample Sentences & Example Usage

  1. Henry Spencer:

    Programming graphics in X is like finding the square root of PI using Roman numerals.

Images & Illustrations of square root

  1. square rootsquare rootsquare root

Translations for square root

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"square root." Definitions.net. STANDS4 LLC, 2018. Web. 23 Feb. 2018. <https://www.definitions.net/definition/square root>.

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