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 system of government where there is one strong, central controlling authority, or the principles of a political party called the Federalists. An example of federalism is when there is one strong main government for the entire United States that has a lot of power and the individual states don't have much power.