Acronyms & Abbreviations

The definition of PSD is:

Pacifica School District

Packaging, Storage and Distribution

Packet Switched Data

Palisades School District

Palmdale School District

Palouse School District

Pancreas-sparing duodenectomy

Paradoxical sleep deprivation

Paradoxical sleep deprived

Paragould School District

Paris School District

Park School District

Parkland School District

Parkrose School District

Parkway School District

Parsons School of Design

PARTIAL SHUNT DRIVE

Partial sleep deprivation

Particle size distribution

Particle size distributions

Particle-Size Distribution

Parts Support Digest

Pascagoula School District

Pasco School District

Passive Sampling Device

Passive sampling devices

Passive Service Directory

Patent Search Documentation

Pateros School District

Paterson School District

Pattern SD

Pattern standard deviation

Pattonville School District

Pawnee School District

Pawtucket School District

Payments Services Directive

Peak skin dose

Pekin School District

Pembroke School Department

Pendleton School District

Peninsula School District

Penncrest School District

Pennoyer School District

Pennridge School District

Pennsbury School District

Pennsville School District

Peoria School District

Peptone, starch and dextrose

Perceived spatial dispersions

Percutaneous stricture dilatation

Perianal streptococcal dermatitis

Periodic synchronous discharge

Periodic synchronous discharges

Permanent Signal Detection

Perpendicular to Spray Direction

Perryville School District

Personal and Social Development

Personal Security Detail

Personal Security Details

Personal Security Device

Personal Software Documentation

Personnel Security Detachment

Personnel Service Detachment

Personnel service division

Personnel Services Delivery

Personnel Services Division

Personnel Support Detachment

Personnel Support Detachments

Personnel Support Division

Pesticides Safety Directorate

Petal School District

Petroleum, Oil and Lubricants Storage Depot

Pewaukee School District

Peyton School District

Phase Shifting Device

Phase-Sensitive Demodulator

Phase-Sensitive Detector

Phased Space Density

Phelps School District

Phillipsburg School District

Philomath School District

Phosphatidylserine decarboxylase

Phosphorylation site domain

Photon-Stimulated Desorption

PhotoShop Document

PhotoShop Drawing

Phrase speech delay

Physical Science Division

Physical Sciences Data

Physical Sciences Division

Physical Security Division

Physiological Support Division

Picayune School District

Pierre School District

Piggott School District

Pilonidal sinus disease

Pinckneyville School District

Pioneer School District

Pittsburgh School District

Pittsville School District

Pituitary stalk distortion

Placental sulfatase deficiency

Placental sulphatase deficiency

Plainfield School District

Planar smear density

Planned Service Date

Planned Shut-Down

Planning systems division

Plastic Shear Defect

Platform Schedule Dependency

Platform-Specific Driver

Platteville School District

Pleasantdale School District

Plymouth School District

Pomeroy School District

Poplarville School District

Pore size distribution

Port security detachment

Port sharing device

Port status display

Portsmouth School District

Position sensitive detector

Positive Sensitive Detectors

Positron-Sensitive Detector

Post Security Detachment

Post Sending Delay

Post-source decay

Post-stroke depression

Postal Security Device

Posterior sagittal diameter

Poststenotic dilatation

Poststroke dementia

Postsynaptic densities

Postsynaptic density

Postsynaptic density protein

Potlatch School District

Pottsgrove School District

Pottstown School District

Poudre School District

Power demand signal

Power Sliding Door

Power spectral densities

Power spectral density

Power Spectrum Densities

Power spectrum density

Power System Dynamics

Power systems demonstrator

Power Systems Division

Powers School District

Preliminary safety document

Prescott School District

Presentation of serious deterioration

President Airlines

Preston School District

Presynaptic dendrites

Prevention of Significant Deterioration

Pribilof School District

Princeton School District

Printer Sharing Device

Printing Systems Division

Private sector development

Process Shutdown

Process Structure Diagram

Procurement Services Division

Product State Distribution

Product Support Directorate

Product Support Division

Product Support Document

Product System Demonstration

Product/Service Development

Professional Standards Department

Program Structure Diagram

Program Structures Division

Program Support and Development

Program Support Data

Program Support Division

Program Support Document

Program Systems Division

Programmable Sharing Device

Programmable System Device

Programme des services de depot

Programmer's Supplementary Documents

Propagation Studies Department

Proportional Stock Density

Propulsion System Demonstrator

Prospect School District

Prosser School District

Protection Switching Duration

Protective Sciences Division

Protective Services Department

Protein Sequence Database

Protein structural distance

Providence School District

Provisioning Support Data

Provo School District

Proximal suspensory desmitis

Psychosomatic disease

Public Services Department

Publications Sales and Distribution

Pueblo School District

Puget Sound Energy

PUGET SOUND ENERGY, INC.

Pullman School District

Pulse shape discrimination

Pulse Shape Discriminator

Pulse Spacing Distribution

Puyallup School District

Pyrimethamine-sulfadoxine