Definition 1: property (as proceeds) that a debtor acquires after the commencement of a bankruptcy case and that is usu. considered part of the bankruptcy estate 2: property acquired after the perfection of a lien or security interest esp : such property acquired after the creation of a lien or security interest that is subject to the lien or becomes collateral for the security interest 3: property transferred to the estate of a decedent after execution of the will