immigration Noun
( en noun)
The act of immigrating; the passing or coming into a country for the purpose of permanent residence.
Related terms
* immigrate
* emigration
* emigrate
* migration
* migrate

regression Noun
( en noun)
An action of regressing, a return to a previous state.
* 1899: Thorstein Veblen, The Theory of the Leisure Class
 Few of these groups or communities that are classed as "savage" show no traces of regression from a more advanced cultural stage.
(psychotherapy) A psychotherapeutic method whereby healing is facilitated by inducing the patient to act out behaviour typical of an earlier developmental stage.
(statistics) An analytic method to measure the association of one or more independent variables with a dependent variable.
(statistics) An equation using specified and associated data for two or more variables such that one variable can be estimated from the remaining variable(s).
(programming) The reappearance of a bug in a piece of software that had previously been fixed.
Antonyms
* progression
Derived terms
* linear regression
* regression to the mean
* regression testing (computing)
* regression therapy (psychotherapy)
