What is a bicameral body

A bicameral legislature is one in which the legislators are divided into two separate assemblies, chambers or houses. A bicameral legislature is distinguished from a unicameral legislature, in which all of the members deliberate and vote as a single group, and from some legislatures which have three or more separate assemblies, chambers or houses.

Most legislatures have a bicameral form. Often, the members of the two chambers are elected or selected using different methods, which vary from country to country. Enactment of laws usually requires the approval of a majority of members in each of the chambers of the legislature.

Bicameralism is an essential and defining feature of the classical notion of mixed government. Bicameral legislatures usually require a concurrent majority to pass legislation.