multicollinearity

noun
mul·ti·col·lin·ear·i·ty | \"+kəˌlinēˈarə̇tē, -kä-\
plural -es

Definition of multicollinearity 

: the existence of such a high degree of correlation between supposedly independent variables being used to estimate a dependent variable that the contribution of each independent variable to variation in the dependent variable cannot be determined

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First Known Use of multicollinearity

1934, in the meaning defined above

History and Etymology for multicollinearity

multi- + collinear + -ity

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The first known use of multicollinearity was in 1934

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