The marriage equality fight was a critical test of mainstreaming a cutting-edge issue.
Since launching in 2009, the company has expanded to 34 countries, mainstreaming on-demand private transportation.
Still, the criticisms have stung, particularly in the age of post-Mitt Romney Mormon mainstreaming.
also main-stream, main stream, "principal current of a river," 1660s, from main (adj.) + stream (n.); hence, "prevailing direction in opinion, popular taste, etc.," a figurative use first attested in Carlyle (1831). Mainstream media attested by 1980 in language of U.S. leftists critical of coverage of national affairs.
mainstreaming main·stream·ing (mān'strē'mĭng)
The process of integrating physically or intellectually disadvantaged students into regular school classes.
The prevailing current or direction of a movement or influence: “The candidate's speech represented the mainstream thinking on economic policy.”
Conventional; materialistic: It's a mainstream movie; don't waste your time (1980s+ Students)