Master of Science in Nursing 
Message Sequence Number 
Multiple Subscriber Number 
Medicare Summary Notice 
Message Switching Network 
Microsoft Network 
MISSION 
Multiple Subscriber Numbering 
Manufacturer Serial Number 
Manufacturers Serial Number 
Mobile Station Number 
EMERSON RADIO CORP. 
IATA code for Dane County Regional Air… 
Magnesium Silicon Nitride 
Main Sensory Nucleus 
Mainland Student Network 
Manhattan Street Network 
Manufacturing Sequence Number 
Marine Safety Network 
Masonry 
Material Substitution Notice 
medial septal nucleus 
Medicare Summary Notices 
medium spiny neurons 
Meeker Southern Railroad 
Meridian Switched Network 
Microfilm Serial Number 
Microsoft Support Network 
Microwave Systems News 
Minority Scientist Network