(finance, banking) A filing for bankruptcy by submitting to the court a virtually complete plan designed to avoid a protracted court-guided period of reorganization and debt restructuring.

(mathematics) An incomplete metric space with an inner product.

(medicine) A form of prevention, usually medication, that is taken before exposure to a pathogen, preventing development of disease after such exposure. Especially:

(US) An official document confirming that an applicant for a mortgage has been qualified to borrow a certain amount of money at, or below, a specific interest rate.

plural of pre-approval letter

plural of pre-packaged bankruptcy

plural of pre-Hilbert space

plural of pre-shared key

plural of pre-alpha version

(geology) A stratum laid down prior to that of a saline layer (formed from encroachment by a sea)