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 definition. A system of government in which power is divided between a national (federal) government and various regional governments. As defined by the United States Constitution, federalism is a fundamental aspect of American government, whereby the states are not merely regional representatives of the federal government, but are granted independent powers and responsibilities.