Ratana (?r??t??n??) adj (Christian Churches, other) of or relating to the Ratana Church or the M?ori Christian religious movement associated with itnpl Ratana1. (Christian Churches, other) the Ratana Church itself2. (Christian Churches, other) a member of the Ratana Church[from the Church’s founder, TW Ratana (1873?1939)]Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014