Bail-in
rescuing a bank by converting its debts and deposits into its equity
In more detail
The rescue of a bank at the expense of its own lenders: their claims, large account balances included, are turned into a stake in that bank.
It was invented after rescuing banks at taxpayers' expense became politically impossible.
Where it appears in the course
In the academy “Bail-in” is not a definition but an operation: you post it yourself and watch what it does to the balance sheet.