regulation

(uncountable) The act of regulating or the condition of being regulated.

(countable) A law or administrative rule, issued by an organization, used to guide or prescribe the conduct of members of that organization.

(law, often in the plural) A type of law made by the executive branch of government, usually by virtue of a statute made by the legislative branch giving the executive the authority to do so.

(countable, in the singular) A numbered provision within such kind of law.

(European Union law) A form of legislative act which is self-effecting, and requires no further intervention by the Member States to become law.

(genetics) Mechanism controlling DNA transcription.

(medicine) Physiological process which consists in maintaining homoeostasis.