A unicameral legislature is a legislative body that consists of a single chamber or house, as opposed to a bicameral system, which has two separate chambers. This structure simplifies the legislative process, enabling quicker decision-making and potentially more efficient governance, as it requires less coordination between different legislative bodies. Unicameral legislatures can vary in their powers and functions, but they generally serve the primary purpose of enacting laws, representing the electorate, and providing oversight of the executive branch.