regression

US /rɪˈɡreʃ.ən/
UK /rɪˈɡreʃ.ən/
1.

regresi

a return to a former or less developed state.

:
it is easy to blame unrest on economic regression
2.

regresi

a measure of the relation between the mean value of one variable (e.g. output) and corresponding values of other variables (e.g. time and cost).