439 PM definitions

Program Manager 
Project Manager 
Private Message 
Preventive Maintenance 
Project Management 
Particulate Matter 
phase modulation 
Performance Monitoring 
Pressurized Module 
Plant Maintenance 
Product Manager 
Provost Marshal 
post meridiem 
Program Management 
Performance Management 
Peripheral Module 
peripheral modules 
Presentation Manager 
Prime Minister 
permanent magnet 
Personal Message 
Polymer Morphology 
post meridian 
Preventive Medicine 
Program Managers 
Power Management 
Preventative Maintenance 
Payload Manager 
physical medium 
Program Memorandum