PID or Pid may refer to:

Medicine

  • Pelvic inflammatory disease or pelvic inflammatory disorder, an infection of the upper part of the female reproductive system
  • Primary immune deficiency, disorders in which part of the body's immune system is missing or does not function properly
  • Prolapsed intervertebral disc, commonly called a herniated disc

Science, technology and engineering

  • BBC Programme Identifier, a unique identifier for a BBC television or radio programme brand, a season or series, or an individual episode
  • OBD-II PIDs (on-board diagnostics parameter IDs), requests for data through an OBD connector in automotive repair
  • Packet Identifier, a field in a MPEG transport stream packet

<!--** Packet ID, used to identify audio/video streams in Digital Video Broadcasting (fails WP:DABACRO, also may be duplicate of above)-->

  • Partial information decomposition, an extension of information theory
  • Passive infrared detector, a passive infrared sensor
  • Payload Interface Document (used on space engineering program for example)
  • Persistent identifier, a long-lasting reference to a document, file, web page, or other object
  • Phosphotyrosine-interacting domain, also known as phosphotyrosine-binding domain, a protein domain which bind to phosphotyrosine
  • Photoionization detector, measures volatile organic compounds and other gases
  • Physical Interface Device, a class of a USB device
  • PID controller (proportional-integral-derivative controller), a control concept used in automation
  • Piping and instrumentation diagram (P&ID), a diagram in the process industry which shows the piping of the process flow etc.
  • Principal ideal domain, an algebraic structure
  • Process identifier, a number used by many operating systems to identify a process

Organisations

  • Police Intelligence Department, a staff department of the Singapore Police Force
  • Political Intelligence Department (disambiguation), multiple organisations
  • Politieke Inlichtingen Dienst (Political Intelligence Department), was the main security agency for the Dutch East Indies
  • Prague Integrated Transport (Pražská integrovaná doprava – PID in Czech), an integrated public transport system in Prague
  • Press Information Department, government department of Bangladesh

Other uses

  • Pathways into Darkness, a 1993 video game by Bungie
  • "Paul is dead", a 1960s urban legend that Paul McCartney was dead
  • Pid (video game), a 2012 video game by Might and Delight
  • Project Initiation Documentation, in project management
  • Party identification, the political party with which an individual identifies
  • Everett Pid Purdy (1904–1951), American athlete who played in both Major League Baseball and the National Football League
  • P.I.D., Christian hip-hop group

See also

  • PIDS (disambiguation)