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regression

noun

re·​gres·​sion ri-ˈgre-shən How to pronounce regression (audio)
1
: the act or an instance of regressing
2
: a trend or shift toward a lower or less perfect state: such as
a
: progressive decline of a manifestation of disease
b(1)
: gradual loss of differentiation and function by a body part especially as a physiological change accompanying aging
(2)
: gradual loss of memories and acquired skills
c
: reversion to an earlier mental or behavioral level
d
: a functional relationship between two or more correlated variables that is often empirically determined from data and is used especially to predict values of one variable when given values of the others
the regression of y on x is linear
specifically : a function that yields the mean value of a random variable under the condition that one or more independent variables have specified values
3
: retrograde motion

Example Sentences

the regression to really childish behavior that boys often undergo when put in large groups
Recent Examples on the Web Bathory’s regression from triumphant Viking metal to primitive thrash was a fun trend-bucker in Requiem, but Quorthon took a terrible turn with Octagon. Andy O'connor, SPIN, 14 Sep. 2022 Nevada led the nation in turnover margin last season, which is a hard trend to replicate and begs for regression. Xl Media, cleveland, 3 Sep. 2022 Several parents, activists, and politicians reacted, saying COVID-19-related school lockdowns can account for the regression and agreeing that teachers unions were the biggest culprit. Joshua Q. Nelson, Fox News, 1 Sep. 2022 While America is one of the most egregious offenders, the regression isn’t just limited to the US. Allison Hope, CNN, 16 June 2022 His regression is part of the reason the Sox obtained Hosmer. Peter Abraham, BostonGlobe.com, 8 Aug. 2022 He's battled a multitude of arm injuries over the past two seasons, a big factor in his regression. Todd Rosiak, Journal Sentinel, 1 Aug. 2022 In the developed world, where the infrastructure is robust, there is resistance to change, and even signs of regression. Pratap Khedkar, STAT, 28 July 2022 But these missteps are hardly indicators of regression. Adam Himmelsbach, BostonGlobe.com, 9 June 2022 See More

Word History

First Known Use

1583, in the meaning defined at sense 1

Time Traveler
The first known use of regression was in 1583

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