The physics definition of period is the duration of one complete cycle of a wave or oscillation.
Federalism- a form of government where a group of states, territories, etc., are governed by one central power. Federalists- a member of the Federalist party. Dual Federalism-the federal government and the statesâ government have separate, but equal, powers.
Federalism is defined as a form of government in which a grouping of states or different groups are under the ruling of one, central power. In a federal form of government, both the national and state governments receive their power from the people.