Additional Mortgaged Collateral

Additional Mortgaged Collateral. Means any real property collateral, with respect to which a lien on and security interest in, was and is required to be granted to the Senior Noteholder Collateral Agent pursuant to Section 4.18(a) and Section 4.18(b) of the Senior Indenture (other than as set forth in Section 4.18(c) of the Senior Indenture);