# PI

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Acronym | Definition |
---|---|

PI | Private Investigator |

PI | Politically Incorrect |

PI | Per Inquiry |

PI | [not an acronym] name for Greek symbol representing the ratio of the circumference of a circle to its diameter; approximately 3.1416 |

PI | Pisa (Tuscany, Italy) |

PI | Plug In |

PI | Product Information |

PI | Private Investigations (movie) |

PI | Process Integration |

PI | Phase I (clinical studies) |

PI | Principal Investigator |

PI | Public Information |

PI | Program Improvement |

PI | Process Improvement |

PI | Personal Injury (legal) |

PI | Phosphate (Inorganic) |

PI | Protease Inhibitor |

PI | Professional Indemnity (insurance coverage) |

PI | Poison Ivy |

PI | Plant Industry (Commonwealth Scientific and Industrial Research Organisation; Australia) |

PI | Package Insert (medications) |

PI | Program Information |

PI | Performance Improvement |

PI | Piauí (Brazilian state) |

PI | Post Intelligencer (newspaper, Seattle, Washington) |

PI | Processing Instruction |

PI | Polyimide (polymer) |

PI | Punto Informatico |

PI | Per Inch |

PI | Point of Intersection |

PI | Point of Impact |

PI | Policy and International Affairs |

PI | Pleasure Island (Disney World) |

PI | Pinellas (plant; Florida) |

PI | Prescribing Information (medication) |

PI | Philadelphia Inquirer (newspaper) |

PI | Paging (assembly language ASM51 assembler control) |

PI | Performance Index |

PI | Pinneberg (auto license plate) |

PI | Petroleum Institute |

PI | PCNA (Proliferating Cell Nuclear Antigen) Labeling Index |

PI | Performance Indicator |

PI | Public Involvement (various locations) |

PI | Parental Involvement (various organizations) |

PI | Police Interceptor |

PI | Personal Inspection |

PI | Privacy International (human rights group) |

PI | Proprietary Information |

PI | Pulse Induction |

PI | Physik Instrumente |

PI | Plasticity Index |

PI | Please Inquire |

PI | Program Instructions |

PI | Presque Isle (Michigan) |

PI | Propidium Iodide |

PI | Point of Inflection (engineering) |

PI | Physikalisches Institut (German: Institute of Physics) |

PI | Proportional-Integral (controller) |

PI | Primer Impacto (TV show) |

PI | Isoelectric Point (chemistry) |

PI | Process Industries |

PI | Pulmonary Infection (lungs) |

PI | Physical Inventory |

PI | Plaque Index (oral hygiene) |

PI | Predictive Index |

PI | Persistently Infected |

PI | Periodic Inspection |

PI | Plant Information (real-time software products such as SCADA) |

PI | PhotoImpact (digital imaging software) |

PI | Propriedade Intelectual (Intellectual Property, Brazil) |

PI | Project Impact (various organizations) |

PI | Premature Infant |

PI | Pacific Institute |

PI | Penile Implant |

PI | Blood Clotting |

PI | Personal Investigator (less common) |

PI | Perpetual Inventory |

PI | Parris Island |

PI | Planet Internet |

PI | Preliminary Injunction |

PI | Polynomial Identity (mathematics) |

PI | Photo Interpretation |

PI | Polyisocyanurate (rigid foam contruction material) |

PI | Physics International |

PI | Passes Intercepted (soccer) |

PI | Platform Integration (various organizations) |

PI | Power Integrations |

PI | Perimeter Institute for Theoretical Physics |

PI | Pass Interference (football) |

PI | Pandemic Influenza |

PI | Policy Issuance (insurance) |

PI | Private Idaho |

PI | Program Introduction (various organizations) |

PI | Praktische Informatik (German: Applied Informatics) |

PI | Primary Immunodeficiency |

PI | Paedagogisches Institut (Vienna, Austria) |

PI | Program Integrity |

PI | Program Increment |

PI | Physically Impaired |

PI | Process & Instrumentation |

PI | Peripheral Iridotomy |

PI | Ponderal Index |

PI | Philippine Islands (slang) |

PI | Project Inspector (various locations) |

PI | Performance Insight (Oracle) |

PI | Personal Identifier |

PI | Pulmonary Insufficiency (cardiac measurement) |

PI | Paternity Index |

PI | Pentium I (Intel) |

PI | Parallel Interface |

PI | Plant Integrity |

PI | Public Intoxication (law enforcement) |

PI | Position Indicator |

PI | Purchase Intent (marketing) |

PI | Pulsatility Index |

PI | Product Integration |

PI | Power Interface |

PI | Pearl Islands (Hawaii) |

PI | Physician Information |

PI | Product Improvement |

PI | Profitability Index |

PI | Program Index |

PI | Population Institute |

PI | Plouffe's Inverter |

PI | Postinjection |

PI | Pressure Indicator (industrial control description) |

PI | Pacific Internet (Internet Service Provider) |

PI | Post Inoculation |

PI | Platform Initialization (Specification) |

PI | Precision Instrument |

PI | Productivity Index (oil and gas well performance) |

PI | Paranormal Investigator |

PI | Provider Independent (IP address space assigned by IANA) |

PI | Program Identification |

PI | Production Insurance |

PI | Photo Interpreter |

PI | Proforma Invoice |

PI | Programmed Instruction |

PI | Proyectos Industriales |

PI | Project Identification (number) |

PI | Profitabilty Improvement |

PI | Prediction Interval |

PI | Packet Interface |

PI | Partner Institution |

PI | Productivity Increase |

PI | Page Impression (Internet advertising) |

PI | Product Integrity |

PI | Priority Inheritance |

PI | Protocol Interpreter |

PI | Paper Insulated |

PI | International Protocol |

PI | Prison Industry |

PI | Perlite Institute (Staten Island, NY) |

PI | Point Initiating |

PI | Program Interruption |

PI | Paranoid Ideation |

PI | Panicle Initiation |

PI | Phosphorus Index |

PI | Pursuit Inc. |

PI | Paperi-Insinöörit (Finnish: Paper Engineers) |

PI | Par Intérim (French: Deputizing) |

PI | Parameter Identifier (ITU-T) |

PI | Istiqlal Party (Independence Party, Morocco) |

PI | Particular Integral |

PI | Payload Integrator |

PI | Perforated Initials (philately) |

PI | Patente de Invenção (Patent, Brazil) |

PI | Photographic Interpreter |

PI | Prime Implicant |

PI | Primary Injection |

PI | Projets Individuels |

PI | Popcorn Institute (Chicago, IL) |

PI | Portable Interceptors |

PI | Pigeon Trainer (US Navy) |

PI | Primary Investigations |

PI | Purchasing Instruction |

PI | Pusat Informasi (Indonesian: Information Center) |

PI | Précompte Immobilier (French: tax on real estate) |

PI | Parents for Inclusion |

PI | Price Integrity |

PI | Paradigm Infinitum (Singapore) |

PI | Program Isolation (IBM) |

PI | Physicist Interface |

PI | Praendex Incorporated (Wellesley, MA) |

PI | Principal Insured |

PI | PrintImage International |

PI | Parameter Indicator |

PI | Prospective Internationale |

PI | Perceptually Impaired |

PI | Pulse Inverter |

PI | Perception Immédiate (French) |

PI | Projector Infantry |

PI | Parent Initial |

PI | Psykoterapiinstitut (Stockholm, Sweden) |

PI | Paducah & Illinois Railroad |

PI | Procurement Instruction |

PI | Page Interleaving |

PI | Psicología Integrada (Portugese) |

PI | Professional Informant |

PI | Ionized Phosphorus |

PI | Proto-I.jo |

PI | Pampers Institute (UK) |

PI | Passive Intercept |

PI | Probationary Instructor |

PI | Profil Infirmier |

PI | Preliminary Investigation Coordinator (Canada) |

PI | Pallidum Internum |

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