swan-upping
swan-upping
n
1. (Government, Politics & Diplomacy) the practice or action of marking nicks in swans' beaks as a sign of ownership
2. (Government, Politics & Diplomacy) the annual swan-upping of royal cygnets on the River Thames
[C16: from up (in the archaic sense: to catch and mark a swan)]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014