What term describes motions that introduce business before the assembly?

The term that describes motions that introduce business before the assembly is "Main." Main motions are essential in parliamentary procedure because they serve the purpose of introducing new topics or proposals for the assembly's consideration. This category of motions requires a second to ensure that another member supports the idea and is debatable, allowing for discussion among the members present.

In the context of parliamentary procedure, main motions are foundational, as they kick off the process of deliberation on new subjects. Members use main motions to bring important issues to the group for action, which can range from new initiatives to changes in policies. Understanding this distinct role of main motions is crucial for effective participation in meetings and governance.

The other terms, while meaningful in their own contexts, do not refer to motions that introduce new business. Secondary motions support or are related to main motions. Privileged motions address urgent matters that require immediate attention, unrelated to introducing standard new business. Incidental motions deal with procedural issues arising from the main motions or business, rather than proposing a new subject for discussion. Hence, "Main" is the correct term to identify those motions designed specifically to introduce business before the assembly.