**Synonyms:** retrogression, retroversion, reversion, regress, regression

**Definition:** returning to a former state

**Similar words:** reversal

**Definition:** a change from one state to the opposite state

**Usage:** *there was a reversal of autonomic function*

**Synonyms:** simple regression, statistical regression, regression, regression toward the mean

**Definition:** 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)

**Similar words:** statistical method, statistical procedure

**Definition:** a method of analyzing or representing statistical data; a procedure for calculating a statistic

**Synonyms:** regression

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

**Similar words:** defence, defence mechanism, defence reaction, defense, defense mechanism, defense reaction

**Definition:** (psychiatry) an unconscious process that tries to reduce the anxiety associated with instinctive desires

**Synonyms:** arrested development, infantile fixation, regression, fixation

**Definition:** an abnormal state in which development has stopped prematurely

**Similar words:** abnormalcy, abnormality

**Definition:** an abnormal physical condition resulting from defective genes or developmental deficiencies