[reg.i.men] n [ME, fr. L regimin-, regimen rule, fr. regere to rule] (14c) 1 a: a systematic plan (as of diet, therapy, or medication) esp. when designed to improve and maintain the health of a patient b: a regular course of action and esp. of strenuous training "the daily ~ of a top ballet dancer"
2: government, rule
3: regime 1c