0 the process of making something start to be considered normal:
1 the act of including people who have particular difficulties or needs in the same schools or places of work as everyone else:
Proper funding for the mainstreaming of children with behavioural problems was never made available.
2 the process of becoming accepted as normal by most people:
The mainstreaming of social networking continues.
The mainstreaming of vegetarianism and healthy lifestyles placed new demands on the market.
What we are witnessing is the mainstreaming of pornography.
Politicians have begun to question whether the policy of mainstreaming - and thereby closing special schools - has gone too far.
The notion of mainstreaming grew out of 1975 federal legislation aimed at making high-needs students' environments less restrictive.
