superbond

noun2

1. •
   A financial instrument that consolidates multiple debts into a single bond.

   • In January 2013, the government announced that it had reached a deal with creditors to restructure its $544 million commercial external debt, commonly referred to as the “superbond.” — 2013
2. •
   An adhesive force formed by multiple constituent bonds.

   • Each vertex of the superbond lattice is surrounded by four bonds of the original lattice. — 1990