What term describes the division of a legislative assembly into two chambers?

The term that describes the division of a legislative assembly into two chambers is bicameralism. This system is commonly found in many countries, including the United States, where Congress is divided into the House of Representatives and the Senate.

Bicameralism allows for a system of checks and balances within the legislative process, as each chamber can review, amend, and either approve or reject legislation. This structure is designed to prevent hasty decisions and ensure thorough deliberation on legislative matters.

In contrast, unicameralism refers to a legislative body with a single chamber, which may not provide the same level of checks and balances. Tricameralism is a less common term that indicates a legislature composed of three chambers, while multicameralism includes assemblies with more than two chambers. These alternatives do not apply to the two-chamber structure, making bicameralism the correct definition in this context.