The definition of legislature is the body of politicians in a state or country that make laws.
The U.S. Congress, which passes bills and makes laws is an example of the legislature.
a body of persons given the responsibility and power to make laws for a country or state; specif., the lawmaking body of a U.S. state, corresponding to the U.S. Congress
Origin of legislaturesee legislator and -ure
An officially elected or otherwise selected body of people vested with the responsibility and power to make laws for a political unit, such as a state or nation.
1676, from stem of legislator + -ure, cognate with (French): lÃ©gislature