|Origin:||régime, from Latin regimen; REGIMEN|
re‧gime W2 [countable]
a government, especially one that was not elected fairly or that you disapprove of for some other reason:
The regime got rid of most of its opponents.
a particular system - used especially when talking about a previous system, or one that has just been introduced
under a regime
Under the new regime, all sheep and cattle will be regularly tested for disease.
a special plan of food, exercise etc that is intended to improve your health [= regimen]:
a dietary regime