اذا لم تجد ما تبحث عنه يمكنك استخدام كلمات أكثر دقة.
mortgage-backed security:- 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 (Princeton WordNet 3.1)