-based adj (in combination) 1. located in the place specified: American-based. 2. having the specified basis or main ingredient: coffee-based. 3. founded on or organized around the thing specified: computer-based. Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014