- MARS
- Military Affiliate Radio System (Governmental » Military)**** Medical And Related Sciences (Academic & Science » Universities)*** Molecular Adsorbent Recirculating System (Medical » Physiology)* Museum Astronomical Resource Society (Community » Museums)* Milwaukee Area Radio Stations (Business » Firms)* Marine Accident Reporting Scheme (Governmental » Military)* Mathematics Assessment Resource Service (Academic & Science » Universities)* Multivariate Additive Regression Splines (Academic & Science » Mathematics)* Music And Recording Superstore (Business » Firms)* Mobile Adjustable Ramp System (Governmental » Military)* Mains Active Restoring System (Computing » General)* Mitigation And Response System (Governmental » US Government)* Management Administrative And Reporting System (Business » General)* Music And Recording Superstores (Business » Firms)* Machine Assisted Reference Services (Community)* Modelling Animation And Rendering System (Community » Media)* Mountain Astronomical Research Section (Academic & Science » Astronomy)* Mountain Area Research Section (Academic & Science » Universities)* Middlebury Automated Registration System (Community)* Meeting And Reservation Service (Business » Firms)* Maintenance And Ramp Safety (Governmental » Transportation)* Mac Address Registration System (Computing » Networking)* Media And Resource Services (Academic & Science » Universities)* Monitoring Action Research System (Academic & Science » Universities)* Mobile Assault Rescue And Strike (Governmental » Military)* Moving Armature Red Signal (Governmental » Transportation)
Abbreviations dictionary. 2012.