- EMS
- Emergency Medical Services (Governmental » Transportation)**** Environmental Management System (Community » Conferences)*** Emergency Medical Service (Medical » Physiology)** Express Mail Service (Business » General)* Electronic Manufacturing Services (Business » Firms)* Enhanced Message Service (Computing » Telecom)* Enhanced Messaging Service (Computing » Networking)* European Monetary System (Business » General)* European Monetary System (Business » International Business)* Energy Management System (Business » General)* Element Management System (Computing » Telecom)* Emergency Medical System (Medical)* Engine Management System (Governmental » Transportation)* Electronic Manufacturing Service (Business » Products)* Electrical Muscle Stimulation (Medical » Laboratory)* Electrical Muscle Stimulation (Medical » Physiology)* Eosinophilia Myalgia Syndrome (Medical » Physiology)* Expanded Memory Specification (Computing » General)* Event Management System (Governmental » NASA)* Enhanced Messaging Services (Computing » Telecom)* Electronic Monitoring System (Community » Law)* Environmental Mutagen Society (Medical » Human Genome)* Electronic Muscle Stimulation (Medical » Physiology)* English Market Selection (Business » International Business)* Enterprise Management Suite (Computing » Software)* Expanded Memory System (Computing » General)
Abbreviations dictionary. 2012.