- 1mainstream something to make a particular idea or opinion accepted by most people Vegetarianism has been mainstreamed.
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- 2mainstream somebody to include children with mental or physical problems in ordinary school classes
mainstream
verbNAmE//ˈmeɪnstrim//
Verb Forms present simple I / you / we / they mainstream he / she / it mainstreams
past simple mainstreamed
-ing form mainstreaming
Check pronunciation: mainstream