👉 Bicameral is a political concept that refers to the division of power among three or more branches of government in order to prevent any one branch from becoming too powerful and undermining the other two. A bicameral legislature consists of two chambers, with each chamber having its own legislative body. The term was first used by Thomas Jefferson in his famous 1803 memorandum on the separation of powers between three branches of the U.S. government: the executive, the judicial, and the legislative