Medical Term:

regression

Pronunciation: rē-gresh′ŭn

Definition:

  1. A subsidence of symptoms.
  2. A relapse; a return of symptoms.
  3. Any retrograde movement or action.
  4. A return to a more primitive mode of behavior due to an inability to function adequately at a more adult level.
  5. An unconscious defense mechanism by which there occurs a return to earlier patterns of adaptation.
  6. The distribution of one random variable given particular values of other variables relevant to it (a formula for the distribution of weight as a function of height and chest circumference). The method was formulated by Galton in his study of quantitative genetics.

[L. regredior, pp. -gressus, to go back]

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