root mean square

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English[edit]

Noun[edit]

root mean square ‎(plural root mean squares)

  1. (mathematics, of a set of numbers or values) The square root of the arithmetic mean of the squares.

Usage notes[edit]

  • This term is frequently used attributively, as in root mean square velocity, root mean square voltage, and so on.
  • This term is typically abbreviated either RMS or rms.

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