Definition of mainstream
(Entry 1 of 3)
: a prevailing current or direction of activity or influence
mainstream
adjective
main·stream
Definition of mainstream (Entry 2 of 3)
: having, reflecting, or being compatible with the prevailing attitudes and values of a society or group
mainstream media movies that appeal to a mainstream audience mainstream success
mainstream
verb
mainstreamed; mainstreaming; mainstreams
Definition of mainstream (Entry 3 of 3)
1
: to place (a student, such as a disabled child) in regular school classes
2
: to incorporate in the mainstream
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Merriam-Webster unabridged
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Time Traveler for mainstream
The first known use of mainstream was in 1599
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