The concept that defines the transition from a monarchy to a parliamentary system in England during the Glorious Revolution is "constitutionalism." This period marked the shift in power from the monarchy, represented by King James II, to Parliament, which asserted its authority over the monarchy. The Glorious Revolution of 1688 established the principles of a constitutional monarchy, where the powers of the monarchy were limited by law and subject to the will of Parliament. This transition laid the groundwork for modern democratic governance in England, emphasizing the importance of a government accountable to the citizens.