Payload Data Management System 
Point Defense Missile System 
Program Decision Memorandums 
plasma desorption mass spectrometry 
patient data management system 
Pesticide Document Management System 
plasma desorption mass spectroscopy 
Palm Desert Middle School 
patient data management systems 
Payload Database Management System 
Peabody Developmental Motor Scales 
point defence missile system 
Point Defense Missile Systems 
polydimethylsiloxane 
polydimethylsiloxanes 
Post Defueling Monitored Storage 
Program Data and Management System