regression

noun8

1. •
   An action of regressing, a return to a previous state.

   • Few of these groups or communities that are classed as "savage" show no traces of regression from a more advanced cultural stage. — 1899
2. •
   The reappearance of a bug in a piece of software that had previously been fixed.
3. •
   An analytic method to measure the association of one or more independent variables with a dependent variable.
4. •
   An equation using specified and associated data for two or more variables such that one variable can be estimated from the remaining variable(s).
5. •
   An action of travelling mentally back in time.

   • I have done past life regressions on my own through self-hypnosis techniques that I learned in Brian Weiss's book Many Lives, Many Masters as well as with past life regression tapes. — 2001
6. •
   A psychotherapeutic method whereby healing is facilitated by inducing the patient to act out behaviour typical of an earlier developmental stage.
7. •
   The diminishing of a cellular mass like a tumor, or of an organ size.
8. •
   The making an exercise less straining to perform by manipulating the details of its performance like loaded weight, range of motion, angle, speed.