mortgage-backed security

Wiktionary

1. n. finance an asset-backed security whose cash flows are backed by the principal and interest payments of a set of mortgage loans.

WordNet 3.0

1. n. a security created when a group of mortgages are gathered together and bonds are sold to other institutions or the public; investors receive a portion of the interest payments on the mortgages as well as the principal payments; usually guaranteed by the government