Abbreviations & Acronyms Dictionary

Conrail
Norfolk Southern
Paramount Airlines
Parietal reach region
Parts Replacement Request
Parts Rework or Replacement
Patients Requiring Regulation
Pattern recognition receptor
Pattern recognition receptors
Pawling Research Reactor
Payload Readiness Review
Penn Central
Pennsylvania Railroad
Pennsylvania Railroad System
Personal Role Radio
Personnel Requirements Report
Philippine Research Reactor
Philippines Research Reactor
Philips Research Reports
Pilot record request
Pin Replacement Register
Plasma refilling rate
Plasma renin reactivity
Poliovirus receptor-related
Pond Road Residence
Positive Replica of the Restoration
Post Rotational Reviews
Postreplication DNA repair
Postreplication repair
Postrepolarization refractoriness
PRAIRIE
Preflight Readiness Review
PRELAUNCH READINESS REVIEW
Preliminary Requirement Review
Preliminary Requirements Review
Pressure rise rate
Prevalence rate ratio
Prevalence rate ratios
Printing Request Router
Problem Reporting and Resolution
Product Request Response
Production Readiness Review
Production Readiness Reviews
Production revision record
Production revision request
Profiling Reflectance Radiometer
Program Requirements Review
Program Requrements Review
Project Requirements Review
Projects Requirements Review
Proline-rich region
Proportional Reporting Ratio
Protective response recommendation
Proton relaxation rate
Prototype Results Review
Prototyping Results Review
Proximal regulatory region
Puerto Rico Reactor
Pulmonary reimplantation response
Pulse Recurrence Rate
Pulse repetition rate
Pupils' Registration Regulations