au·​to·​cor·​re·​la·​tion ˌȯ-tō-ˌkȯr-ə-ˈlā-shən How to pronounce autocorrelation (audio)
: the correlation between paired values of a function of a mathematical or statistical variable taken at usually constant intervals that indicates the degree of periodicity of the function

Example Sentences

Recent Examples on the Web The problem is one that regular readers may remember: autocorrelation, also known as non-independence of observations. Neuroskeptic, Discover Magazine, 22 Mar. 2018 One main root of the problem is spatial autocorrelation - the fact that the fMRI signal tends to be similar (correlated) across nearby regions. Neuroskeptic, Discover Magazine, 5 May 2016

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'autocorrelation.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Word History

First Known Use

1933, in the meaning defined above

Time Traveler
The first known use of autocorrelation was in 1933

Dictionary Entries Near autocorrelation

Cite this Entry

“Autocorrelation.” Dictionary, Merriam-Webster, Accessed 29 Mar. 2023.

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