the relation between variables when the regression equation is linear: e.g., y = ax + b

an abnormal state in which development has stopped prematurely

the relation between selected values of x and observed values of y (from which the most probable value of y can be predicted for any value of x)

returning to a former state

(psychiatry) a defense mechanism in which you flee from reality by assuming a more infantile state

of or in or along or relating to a line; involving a single dimension

of a circuit or device having an output that is proportional to the input

measured lengthwise

(of a leaf shape) long and narrow