Use the adjective unicameral to describe a government with only one legislative house or chamber. The Parliament of Finland, for example, is unicameral.

Some governments are split into two houses — these are called bicameral legislatures. When there is only one house, usually because the government is small or the country is homogeneous, it's called unicameral. Having a unicameral government is simpler and more straightforward, while a bicameral legislature can represent more diverse groups. The word unicameral has two Latin roots, uni, which means "one," and camera, "chamber."

Definitions of unicameral

adj composed of one legislative body

composed of two legislative bodies

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