Mouse Phenome Database 
Maintenance Planning Document 
Maintenance Planning Data 
maximum permissible dose 
Military Personnel Division 
Message Preparation Directory 
Metropolitan Police Department 
MOPAR DISCONTINUED 
Marshall Policy Directives 
Mode Power Distribution 
Multiple Personality Disorder 
myeloproliferative disorder 
Air Plus Comet 
Macomb Police Department 
Macon Police Department 
Madison Police Department 
Madisonville Police Department 
Madras Police Department 
Magazine Police Department 
Magnetic Permeability Disaccommodation 
MAGNETOSPHERIC PARTICLE DETECTOR 
Magnetospheric Particles Detectors 
Magnolia Police Department 
main pancreatic duct 
Main Power Distributor 
Maintenance Plan Documentation 
Major Projects Division 
malignant pancreatic disease 
Malvern Police Department 
Malverne Police Department