mean square

noun

: the mean of the squares of a set of values

Examples of mean square in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
When each pixel during the scanning process was given 5 milliseconds to collect photons, the new de-noising algorithm reduced the root mean square error—a measure of its deviation from a perfect image—of reconstructed images by about eightfold. IEEE Spectrum, 1 Feb. 2024 In addition, in order to show an ET quantitative application, beer alcohol content was predicted from the array data employing an artificial neural network model (root mean square error for testing subset was 0.131 abv). Seriously Science, Discover Magazine, 5 Feb. 2014

Word History

First Known Use

circa 1832, in the meaning defined above

Time Traveler
The first known use of mean square was circa 1832

Dictionary Entries Near mean square

Cite this Entry

“Mean square.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mean%20square. Accessed 22 Nov. 2024.

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