Multicameralism

  Nations with a bicameral legislature.
  Nations with a unicameral legislature and an advisory body.
  Nations with a unicameral legislature.
  Nations with no legislature.
  Data not available.
Switzerland has a bicameral legislature. The image shows the Federal Palace of Switzerland, with the National Council (top) and the Council of States (bottom).

In contrast to unicameralism, and bicameralism, multicameralism is the condition in which a legislature is divided into more than two deliberative assemblies, which are commonly called "chambers" or "houses". This usually includes tricameralism with three chambers, but can also describe a system with any amount more. The word "multicameral" can also relate in other ways to its literal meaning of "many chambered" with use in science or biology.