Phrase guide

root mean square

noun · 1 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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1

noun

Meaning 1

The square root of the arithmetic mean of the squares of a set of numbers or values.

Definition source: English Wiktionary via Wiktextract

Usage: attributive, often

Topics: mathematics, sciences

Examples

  • root mean square voltage

Meaning relationships

Synonyms: quadratic mean

Antonyms: none provided

History

Etymology

No etymology was provided for this word.

Across languages

Translations

16 source translations are retained for this English entry.

  • Chinese Mandarin: 均方根 (jūnfānggēn) — type of average
  • Chinese Mandarin: 方均根 (fāngjūngēn) — type of average
  • Czech: kvadratický průměr — type of average
  • Finnish: neliöllinen keskiarvo — type of average
  • Finnish: neliökeskiarvo — type of average
  • French: moyenne quadratique — type of average
  • German: quadratisches Mittel — type of average
  • Hungarian: négyzetes közép — type of average
  • Icelandic: ferningsmeðaltal — type of average
  • Italian: media quadratica — type of average
  • Polish: średnia kwadratowa — type of average
  • Russian: сре́днее квадрати́ческое (srédneje kvadratíčeskoje) — type of average
  • Russian: сре́днее квадрати́чное (srédneje kvadratíčnoje) — type of average
  • Serbo-Croatian: kvadratna sredina — type of average
  • Spanish: media cuadrática — type of average
  • Tagalog: dawaking tamtaman — type of average