regression

regression definition - medical

re·gres·sion (rĭ-grĕshˈən)

noun
  1. A subsidence of the symptoms of a disease.
  2. A relapse of symptoms.
  3. Reversion to an earlier or less mature pattern of feeling or behavior.
  4. Relapse to a less perfect or developed state.
  5. The return of a population to an earlier or less complex physical type in successive generations.
  6. The relationship between the mean value of a random variable and the corresponding values of one or more independent variables.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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Retrogression and regression66 years ago

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