Mainstream

The principal current in a flow, such as a river or flow of air

(usually with the) That which is common; the norm.

"His ideas were well outside the mainstream, but he presented them intelligently, and we were impressed if not convinced."

To popularize, to normalize, to render mainstream.

To become mainstream.

To educate (a disabled student) together with non-disabled students.

"Mainstreaming has become more common in recent years, as studies have shown that many mainstreamed students with mild learning disabilities learn better than their non-mainstreamed counterparts."

Used or accepted broadly rather than by small portions of a population or market.

"They often carry stories you won't find in the mainstream media."