Almadén (Spanish alma??en) n (Placename) a town in S Spain: rich cinnabar mines, worked since Roman times. Pop: 6659 (2003 est)Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014Al?ma?dén (?æl m??d?n, -?de?n, ??l-) n. a town in central Spain: mercury mines. 10,774. Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.