'M3' definitions:
Definition of 'M3'
From: WordNet
noun
A measure of the money supply; M2 plus deposits at institutions that are not banks (such as savings and loan associations)
Definition of 'M3'
From: GCIDE
- M3 \M3\ n. A broad measure of the money supply, comprising M2 plus deposits at nonbanks such as savings and loan associations. [WordNet 1.5]