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In advanced search by entering an abbreviation, you will find all abbreviated states of that term. This section only applies to Latin phrases.
Search result from: PSI
Pounds per Square Inch
Population Services International
Psychiatric Solutions Inc.
Praeger Security International (Santa Barbara, CA)
Public Services International
Product Stewardship Institute
Patient Safety Indicators
Public Sector Information
Policy Studies Institute (UK)
Products and Services, Inc. (various businesses)
Paul Scherrer Institute (Switzerland, Joint Institute of ETH)
Political, Social and International Studies (various locations)
Pet Sitters International
Pressure per Square Inch (measurement)
Psionic
Pre-Shipment Inspection
Proliferation Security Initiative (international treaty with US DoD mission)
Publisher Services, Inc. (Norcross, GA)
Private Sector Involvement
Project Server Interface (Microsoft)
PSi
Performance Studies International
Personal Software Inspector
Performance Systems International
Personal Services Income (taxes)
Perimeter Scholars International (physics; Waterloo, Ontario, Canada)
Plastic Surgery Institute (various locations)
Penn State Industries
Presentence Investigation
Problem-Solving Inventory
Partito Socialista Italiano
Printing Services, Inc. (various locations)
Postpartum Support International
Pre-Sentence Investigation
Patient Safety Institute
Program Specific Information (Television)
Physical Sciences Institute (Illinois)
Permanent Subcommittee on Investigations (US Senate)
Pneumonia Severity Index
Perspectives of System Informatics
Pitchshifter (band)
Programa Nacional para la Sociedad de la Información
Policy Studies Inc (Denver, Colorado)
Protein Structure Initiative
Personalized System of Instruction
Planetary Science Institute
Physical Sciences Inc.
Pollutant Standards Index
Psychological Society of Ireland
Performance Solutions, Inc. (various locations)
Paix et Securite Internationales (French)
Pharmaceutical Society of Ireland
Public Strategies, Inc. (various locations)
Postponing Sexual Involvement
Planned Systems International (Columbia, MD)
Process Safety Information
Product Support Integrator (US Army)
Proteomics Standards Initiative
Phase Shifting Interferometry
Police Sub Inspector
Personnel Security Investigation
Pharmaceutical Security Institute
Potentially Shippable Increment (Agile Software Development)
Promoting Social Inclusion (UK)
Professional Secretaries International
Private Sector Initiatives (Houston, TX)
Plant Sciences Institute
Public Safety Institute
Present Serviceability Index (pavement quality rating)
Professional Services Industries, Inc.
Statisticians in the Pharmaceutical Industry
Public Service Indiana
Pollution Standards Index
Planning Systems Incorporated
Preservation Services, Inc. (various locations)
Patient Safety Initiatives
Photonic Systems, Inc. (Billerica, MA)
Pollution Standard Index
Plant Science Initiative
Platform Solutions, Inc. (Massachusetts)
Product Service Innovation
Principal Security Inspector (aviation)
Program Systems Institute (Russian Academy of Sciences)
Polymer Search on the Internet
Patient Services Incorporated
Pacific Sustainability Index (Claremont McKenna College; Claremont, CA)
Produkte Und Systeme Der Informationstechnologie (German stock company)
Pre-Shift Information (various companies)
Physicians Services Incorporated (Canada)
Programmable Serial Interface
Portuguese Stock Index
Performance Strategies, Inc. (marketing)
Performance Sales International
Pharmaceutical Strategic Initiatives (est. 1985)
Paul-Scherer-Institut (Switzerland)
Printempa Semajno Internacia
Public Service Interpreting
Aktiengesellschaft für Produkte und Systeme der Informationstechnologie
Pedestrian Safety Initiative (various locations)
Project for School Innovation
Protocol State Information
Perception, Systèmes, Information
Philanthropic Service for Institutions
Protein Synthesis Inhibition
Pharmacy Services Inc.
Peripheral Solutions Inc. (Ontario, Canada)
Pakistan Standards Institution
Professional Scuba Inspectors, Inc.
Public Seed Initiative (USDA)
Pinpoint Solutions, Inc. (Steamboat Springs, CO)
Priority Solutions International (various locations)
Professors for a Strong Israel
Psychiatric Society for Informatics
Photon Systems Instruments
Pipeline Systems Inc.
Political and Social Inquiry
Perfectly Scientific Inc.
Panel Source International (Canada)
Packet Switching Interface
Palestine Standards Institution
Philanthropic Studies Index
PHP Simple Informer (network services monitor)
Plasma Source Instrument (NASA)
Para Su Información (Spanish: For Your Information)
Portable Scheme Interpreter
Propagation Systems Inc.
Project Status Inquiry
Production/Sales/Inventory
Program Structure Interface (integrated development environments)
Portable Site Information
Pitch Synchronous Innovation
Parascience International (est. 1976)
Pechersk School International
Process Safety Incident
Pipeline Seal and Insulator, Inc.
Professional Support Inc.
Probabilistic and Statistical Inference
Permanent Staff Instructor (UK military)
Professional Standards Institute
Paranormal Science Investigations
Preliminary Site Inspection
Pokémon Stars Indonesia (fan club)
Poseidon Scientific Instruments Pty Ltd
Process Safety Institute
Partit Socialista de les Illes (Catalan: Socialist Party of the Islands)
Parent Success Initiative
Product Support Initiative
Progressive Structural Inspection (airframe hour based maintenance and overhaul inspection)
Present Situations Index
Projeto de Sistemas de Informação
Pan-Sahelian Initiative
Pre-Screening Interview
Professional Success Institute
Program Security Instruction
Premium Services Infrastructure
Prism Solutions, Inc.
Personal Space Invader
Professional Staff Internship
Personnel Strategies LLC
Paradigm Shift International
Program in the Study of Imagination
Purchase, Sales and Inventory
Partisan Self Identification
Photon Simulation Interface
Process & Systems Integrity
Prestige Software International
Planar Spiral Inductor
Programmable Stratabus Interface
Public Studies Institute
Probability, Statistics and Information
Physical Site Identifier (used to identify a Navy or Marine Corps military installation)
Paranormal Society of Indiana
Pan-Saharan Initiative
PBX Switch Interface
Peripheral System Interconnect
Philosophy Student Initiative
Process Sciences, Incorporated
Primary Shell Integrity
Plan Speed Indicator
Pollution Standard Indicator
Pro Safety International Ltd (UK)
Pilot's Steering Indicator
Programmed School Input
Promotional Services International
Property Standards Index (Australia)
PI Scientific Instrument
President's Security Initiative
Press Services of India (India)
Prior Suspense Item
Pro Salute Imperii (Latin: For Safety of the Empire, epigraphy)
Pico-Second Interval
Personal and Family Safety Information
ProScuba Inc.
Program Support Item/Interest
Product-Specific Sales Incentive
Pleural Space Infection
Parallelization/Standardization/Integration
Programme de Surveillance de l'Irradiation (French: Radiation Monitoring Program)
Programme de Suivi de l'Irradiation (French: Irradiation Monitoring Program)