MSA definition by American Heritage Dictionary
- medical savings account
- Metropolitan Statistical Area
msa - Computer Definition
(1) (Metropolitan Service Area) An urban area with at least 50,000 people plus surrounding counties. There are 306 MSAs and 428 RSAs (rural service areas) in the U.S. MSAs and RSAs are used to allocate cellular licenses.
(2) (Medical Savings Account) See healthcare IT.