### We've got **159** definitions for **PI** »

# What does **PI** stand for?

#### What does **PI** mean? This page is about the various possible meanings of the acronym, abbreviation, shorthand or slang term: **PI**.

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Term |
Definition |
Rating |

PI | Penalty Indicator | |

PI | Penning ionization [ | |

PI | Perimeter Institute for Theoretical Physics | |

PI | Peripheral Iridectomy | |

PI | Physically Impaired | |

PI | Physiologic Index | |

PI | Piaui | |

PI | pituitary | |

PI | Plaque Inhibition | |

PI | Point of Impact | |

PI | Poison Ivy | |

PI | Post Implantation | |

PI | Post Infection | |

PI | Post Inoculation | |

PI | Post Irradiation | |

PI | Post Ischaemic | |

PI | Postal Inspectors | |

PI | Preliminary Investigation | |

PI | Prepaid Interest | |

PI | Primary Infection | |

PI | Primary Instructor | |

PI | Probability of Incapacitation | |

PI | Procedural Item | |

PI | Procurement Item | |

PI | Product Information |

#### What does **PI** mean?

- pi(noun)
- the ratio of the circumference to the diameter of a circle; approximately equal to 3.14159265358979323846...

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"PI." *Abbreviations.com.* STANDS4 LLC, 2019. Web. 14 Oct. 2019. <https://www.abbreviations.com/PI>.