mainstreamadj/ˈmeɪn.stɹiːm/

• 1

  Used or accepted broadly rather than by small portions of population, market, scientific community, etc.

  • They often carry stories you won't find in the mainstream media.
  • As unsubstantiated claims receive significant backing, skeptics and defenders of mainstream science enter the fray.

mainstreamnoun/ˈmeɪn.stɹiːm/

• 1

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

• 2

  That which is common; the norm.

  • ideas outside of the mainstream
  • George Herbert Walker Bush of Phillips Andover Academy and Yale University proclaimed in the first Presidential candidates' debate that he was “in touch with the mainstream of America.”

mainstreamverb/ˈmeɪn.stɹiːm/

• 1

  To popularize, to normalize, to render mainstream.

  • Just as the gang peace movement desired to mainstream hardcore bangers into civic society, The Chronic wanted to drive hardcore rap into the popstream.
  • Acknowledging the role X plays in mainstreaming the worst constituencies makes for awkward conversations with those who continue to use it.
• 2

  To become mainstream.

  • In a nonchurch context, we can look more explicitly at formerly New Age practices to see if and how they have mainstreamed.
• 3

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

  • Despite these beliefs, the decision to send my son to a regular school was not made easily. I didn't know of any child as disabled as he who had been mainstreamed.