quadratic mean

noun

A type of average, calculated as the square root of the mean of the squares, i.e. Q=√x_1²+x_2²+...+x_n²/n.

Similar
root mean squareRMS
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Meanings

nounquadratic mean (plural quadratic means)

plural quadratic means

  1. mathematicsA type of average, calculated as the square root of the mean of the squares, i.e. Q=√x_1²+x_2²+...+x_n²/n.

    Synonyms: root mean square, RMS, rms

Synonyms & antonyms

nounA type of average, calculated as the square root of the mean of the squares, i.e. Q=√x_1²+x_2²+...+x_n²/n.

Similar
root mean squareRMSrms
Also see
root mean square

Origin

Quadratic in the phrase refers to the squaring on the terms.

Full word history & related roots →
Cite this entry
APA

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

MLA

“quadratic mean.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/quadratic%20mean. Accessed November 4, 2026.

Chicago

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

Source: quadratic mean on Wiktionary, CC BY-SA 4.0.