1. The quality or state of being collinear; the condition in which three or more points lie on the same straight line.
Usage: mathematics; geometry; plural form of colinearity
2. In statistics and regression analysis, the situation in which two or more predictor variables are highly correlated, making it difficult to determine their individual effects.
Usage: statistics; technical; plural form of colinearity

Examples

• The colinearities of the three points confirmed they all lay on the same line.
• In geometry, we test for colinearities by checking if the slope between pairs of points is constant.
• The regression model suffered from colinearities between age and years of experience.
• Statisticians must account for colinearities when interpreting regression coefficients.
• The presence of colinearities in the dataset reduced the reliability of the predictions.