What does CD-ROM mean? CD-ROM, compact disc read-only memory (noun) a compact disk that is used with a computer (rather than with an audio system); a large amount of digital information can be stored and accessed but it cannot be altered by the user
The average life, also referred to as the âweighted average lifeâ or âweighted average maturityâ or âWAM,â is a reflection of the rapidity with which the principal of an issue is expected to be paid.
DEFINITION of 'Weighted Average Life-WAL'. The average number of years for which each dollar of unpaid principal on a loan or mortgage remains outstanding. Once calculated, WAL tells how many years it will take to pay half of the outstanding principal.