ˈrejəmən, -ˌmen noun
( -s )
Etymology: Middle English, from Latin regimin-, regimen rule, government, from regere to rule — more at right
1.
a. : a systematic plan (as of diet, therapeutic and sanitary measures, and medication) designed to improve and maintain the health of a patient or to control a particular ailment
b. : a regulation or treatment intended to benefit by gradual operation
2. : governing, government , rule , administration
3. : government 5a
4. : the characteristic behavior or orderly procedure of a natural phenomenon or process (as of a river or a glacier)