Regression

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regression

1. A return to a former or earlier state.

2. A subsidence of symptoms or of a disease process.

3. (Science: psychiatry) A return to earlier, especially to infantile, patterns of thought or behaviour, a characteristic of many mental disorders also exhibited by normal persons in many situations, for example feelings of helplessness and dependency in a patient with a serious physical illness.

Origin: L. Regressio = a return