n. The act of constituting, establishing, or appointing; formation.n. The state of being constituted, composed, made up, or established; the assemblage and union of the essential elements and characteristic parts of a system or body, especially of the human organism; the composition, make-up, or natural condition of anything: as, the physical constitution of the sun; the constitution of a sanitary system; a weak or irritable constitution.n. A system of fundamental principles, maxims, laws, or rules embodied in written documents or established by prescriptive usage, for the government of a nation, state, society, corporation, or association: as, the Constitution of the United States; the British Constitution; the Constitution of the State of New York; the constitution of a social club, etc.n. A particular law, ordinance, or regulation, made by the authority of any superior, civil or ecclesiastical; specifically, in Roman law, what an emperor enacted, either by decree, edict, or letter, and without the interposition of any constitutional assembly: as, the constitutions of Justinian.n. Any system of fundamental principles of action: as, the New Testament is the moral constitution of modern society.n. That branch of the law which defines and interprets the scope and meaning of a constitution.