principal square root

noun

The positive square root of a number; the positive number which, when squared, yields the original number.

“The principal square root of 9 is 3.”

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Meanings

nounprincipal square root (plural principal square roots)

plural principal square roots

  1. mathematicsThe positive square root of a number; the positive number which, when squared, yields the original number.

    The principal square root of 9 is 3.

Rhymes & wordplay

Rhymes with principal square root

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Cite this entry
APA

principal square root. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/principal%20square%20root

MLA

“principal square root.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/principal%20square%20root. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “principal square root,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/principal%20square%20root.

Source: principal square root on Wiktionary, CC BY-SA 4.0.