Palestinian National Authority n (Government, Politics & Diplomacy) the authority formed in 1994 to govern the Palestinian Administered Territories: it controls policy on health, education, social welfare, direct taxation, tourism, and culture and manages elections to the Palestinian Council. Abbreviation: PNA Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014