regla[Espagnol]

nom
1 : directions that define the way a game or sport is to be conducted
2 : a rule or law concerning a natural phenomenon or the function of a complex system
3 : the monthly discharge of blood from the uterus of nonpregnant women from puberty to menopause
4 : prescribed guide for conduct or action
5 : a basis for comparison; a reference point against which other things can be evaluated
6 : something regarded as a normative example