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British Dictionary definitions for alt-rock

alt-rock

alt.rock

noun
  1. a genre of rock music regarded by its practitioners and fans as being outside the mainstream

Word Origin

C20: from alt (ernative) + rock
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012