n.
The prevailing current of thought, influence, or activity: "You need not accept the nominee's ideology, only be able to locate it in the American mainstream" (Charles Krauthammer).
adj.
Representing the prevalent attitudes, values, and practices of a society or group: mainstream morality.
tr.v., -streamed, -stream·ing, -streams.
- To integrate (a student with special needs) into regular school classes.
- To incorporate into a prevailing group.
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.