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Word(s) in meaning: chat "global warming" Postal codes: USA: 81657, Canada: T5A 0A7 
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Your abbreviation search returned 186 meanings
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showing only Science & Medicine definitions (Show all) |
| Category Filters > | All definitions (186) |
Information Technology (33) |
Military & Government (33) |
Science & Medicine (66) |
Organizations, Schools, etc. (27) |
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| sort results: alphabetical | rank ? | |||
| Rank | Abbr. | Meaning | |
|---|---|---|---|
| ****** | PI | Phosphate (Inorganic) | |
| ****** | PI | Protease Inhibitor | |
| ****** | PI | Plant Industry (Commonwealth Scientific and Industrial Research Organisation; Australia) | |
| ****** | PI | Package Insert (medications) | |
| ****** | PI | Pulse Induction | |
| ***** | PI | Propidium Iodide | |
| ***** | PI | Proportional-Integral (controller) | |
| ***** | pI | Isoelectric Point (chemistry) | |
| ***** | PI | Predictive Index | |
| ***** | PI | Blood Clotting | |
| ***** | PI | Pandemic Influenza | |
| ***** | PI | Praktische Informatik (German: Applied Informatics) | |
| ***** | PI | Primary Immunodeficiency | |
| ***** | PI | Paedagogisches Institut (Vienna, Austria) | |
| ***** | PI | Program Integrity | |
| ***** | PI | Process & Instrumentation | |
| ***** | PI | Pulsatility Index | |
| **** | PI | Plouffe's Inverter | |
| **** | PI | Postinjection | |
| **** | PI | Pressure Indicator (industrial control description) | |
| **** | PI | Post Inoculation | |
| **** | PI | Precision Instrument | |
| **** | PI | Productivity Index (oil and gas well performance) | |
| **** | PI | Prediction Interval | |
| **** | PI | Productivity Increase | |
| **** | PI | Paper Insulated | |
| **** | PI | Paranoid Ideation | |
| **** | PI | Panicle Initiation | |
| **** | PI | Phosphorus Index | |
| *** | PI | Particular Integral | |
| *** | PI | Prime Implicant | |
| *** | PI | Primary Injection | |
| *** | PI | Projets Individuels | |
| *** | PI | Primary Investigations | |
| *** | PI | Physicist Interface | |
| *** | PI | Parameter Indicator | |
| *** | PI | Perceptually Impaired | |
| ** | PI | Pulse Inverter | |
| ** | PI | Psykoterapiinstitut (Stockholm, Sweden) | |
| ** | PI | Psicología Integrada (Portugese) | |
| ** | Pi | Ionized Phosphorus | |
| * | PI | Proto-I.jo | |
| * | PI | Pallidum Internum | |
| * | pi | [not an acronym] name for Greek symbol representing the ratio of the circumference of a circle to its diameter; approximately 3.1416 | |
| * | PI | Paperi-Insinöörit (Finnish: Paper Engineers) | |
| * | PI | Performance Index | |
| * | PI | Performance Indicator | |
| * | PI | Perimeter Institute for Theoretical Physics | |
| * | PI | Peripheral Iridotomy | |
| * | PI | Persistently Infected | |
| * | PI | Phase I (clinical studies) | |
| * | PI | Paternity Index | |
| * | PI | PCNA (Proliferating Cell Nuclear Antigen) Labeling Index | |
| * | PI | Penile Implant | |
| * | PI | Physically Impaired | |
| * | PI | Physician Information | |
| * | PI | Physics International | |
| * | PI | Physik Instrumente | |
| * | PI | Pinellas (plant; Florida) | |
| * | PI | Plaque Index (oral hygiene) | |
| * | PI | Plasticity Index | |
| * | PI | Point of Inflection (engineering) | |
| * | PI | Poison Ivy | |
| * | PI | Polyisocyanurate (rigid foam contruction material) | |
| * | PI | Polynomial Identity (mathematics) | |
| * | PI | Ponderal Index | |
| showing only Science & Medicine definitions (show all 186 definitions) | |||
| Note: We have 147 other definitions for PI in our Acronym Attic | |||
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