Mieres (Spanish ?mjeres) n (Placename) a city in N Spain, south of Oviedo: steel and chemical industries; iron and coal mines. Pop: 47 618 (2003 est)Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014