[1] : The Collaborative International Dictionary of English v.0.48

mainstream \main"stream`\ n.
   the prevailing opinion or practise; as, the doctor avoided
   using therapies outside the mainstream of modern medical
   practice.
   pjc

[2] : The Collaborative International Dictionary of English v.0.48

mainstream \main"stream`\ v. t. education
   to place a student in regular school classes; -- used
   especially of mentally or physically handicapped children.
   wordnet 1.5

[3] : WordNet (r) 2.0

mainstream
     n : the prevailing current of thought; "his thinking was in the
         american mainstream"

[4] : Moby Thesaurus II by Grady Ward, 1.0

21 moby thesaurus words for "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

Mainstream >> M Words
Mainstream, definition of term: Mainstream
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