[aw-toh-kawr-uh-ley-shuhn, -kor-]
noun Statistics.
the correlation of an ordered series of observations with the same series displaced by the same number of terms.

1945–50; auto-1 + correlation Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
autocorrelation (ˌɔːtəʊˌkɒrɪˈleɪʃən)
Also called: serial correlation the condition occurring when successive items in a series are correlated so that their covariance is not zero and they are not independent

Collins English Dictionary - Complete & Unabridged 10th Edition
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