mainstream

n.	1.	The prevailing opinion or practise; as, the doctor avoided using therapies outside the mainstream of modern medical practice.
v. t.	1.	(Education) TO place (a student) in regular school classes; - used especially of mentally or physically handicapped children.

Noun

1.

mainstream - the prevailing current of thought; "his thinking was in the American mainstream"

Zeitgeist, bearing, course, current, direction, drift, glacial movement, line, main current, motion, movement, run, set, stream, swing, tenor, the general tendency, the main course, time spirit, tone, trend