considered normal, and having or using ideas, beliefs, etc. that are accepted by most people:
This is the director's first mainstream Hollywood film.
used to refer to education for children who can be taught in the same way as most other children, or to people, schools, etc. connected with this type of education:
Many youngsters have been out of mainstream education for so long that they cannot adapt to a formal learning environment.
Many estimate that up to 20% of children in mainstream classrooms may have some special needs.
mainstream children/students/teachers