Or some other kind of second house in a bicameral legislature?

Each one forms the lower house of a bicameral legislature.

It is a bicameral legislature that was created by the 1876 state constitution.

The plan featured a bicameral legislature, the lower house elected by the people for three years.

The bicameral legislature was introduced in the September 1999 constitution.

In the 49 bicameral legislatures, the upper house is called the "Senate".

Most often it refers to when both houses of a bicameral legislature sit together.

It called for a weak bicameral legislature and a strong executive branch.

The bicameral legislature, to sit for only two years, was restricted in crucial areas.

In states with bicameral legislatures, one cannot simultaneously be a member of both houses.