/ ˈmeɪnstriːm; NAmE / noun , adjective , verb
■ noun
the mainstream [ sing. ] the ideas and opinions that are thought to be normal because they are shared by most people; the people whose ideas and opinions are most accepted :
His radical views place him outside the mainstream of American politics.
► main·stream adjective [ usually before noun ]:
mainstream education
■ verb [ vn ]
1.
to make a particular idea or opinion accepted by most people :
Vegetarianism has been mainstreamed.
2.
( especially NAmE ) to include children with mental or physical problems in ordinary school classes