From Wikipedia, the free encyclopedia
PID may refer to:
- Prolapsed intervertebral disc, commonly called a "herniated disc"
- Primary immune deficiency, disorders in which part of the body's immune system is missing or does not function properly
- Pelvic inflammatory disease, (or Pelvic Inflammatory Disorder), an infection and inflammation of the female uterus, fallopian tubes, and/or ovaries
- Project Initiation Document, all major aspects of the project and forms the basis for its management and the assessment of overall success
- Photoionization detector, measures volatile organic compounds and other gases
- Process identifier, a number used by Unix kernels and Windows operating systems to identify a process
- PID controller, a control concept used in automation. (Proportional/Integral/Derivative)
- Piping and instrumentation diagram, (or Process and instrumentation diagram) a technical diagram showing all (or a part of) pipelines, instruments, valves, etc., of a process plant
- Passive Infrared Detector, a PIR-based motion detector
- Personal Integrating/Indicating Dosemeter, a type of dosimeter for personal use
- Packet Identifier, a field in a MPEG transport stream packet.
- Packet ID, used to identify audio/video streams in DVB "Digital Video Broadcasting"
- Physical Interface Device, a class of USB devices.
- Principal ideal domain, in abstract algebra, an integral domain in which every ideal is principal
- Police Intelligence Department, a staff department of the Singapore Police Force
- Political Intelligence Department (disambiguation), multiple organizations
- Pathways Into Darkness, a 1993 video game by Bungie Studios
- Parameter ID, in automotive repair, PIDs are requests for data through an OBD connector
- Paul Is Dead, a 1960s urban legend that Paul McCartney was dead
- Pid (video game), a 2012 video game by Might and Delight
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