micronation (?ma?kr?u?ne???n) n (Government, Politics & Diplomacy) an entity, typically existing only on the internet or within the private property of its members, that lays claim to sovereign status as an independent nation, but which is unrecognized by real nationsCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014