Segregated means separated. Some people think it’s a good idea to keep boys and girls segregated — or separated from each other — at school. Others believe that boys and girls should learn in the same classrooms.
One person can be segregated from a group, as when a sick person is kept in isolation so others don’t become infected. Whole groups of people can also be segregated from each other. Since the late 1800s, segregated has been used in reference to the forced exclusion of African Americans from places where only whites were allowed, including schools, movie theaters, and train cars. The Latin root is segregare, "separated from the flock."