What does PID stand for?

Democratic Institutionalist Party (Guatemala) - Political party (PSAP)

D. T. Watson Home for Crippled Children, Leetsdale, PA - OCLC symbol (OCLC)

Pain Intensity Differences - Medicine

Parallel Interface Device (SAUS)

Paralytic Infantile Paralysis - Medicine (QSUL)

Parameter Identification - Communications

Partial Initial Decision - Nuclear energy (NRCH)

Particle-Induced Desorption (SAUS)

Partido de Integracion Democrata - Democratic Integration Party - Argentina - Political party (PPW)

Partido Izquierda Democratica - Democratic Left Party - Political party (EAIO)

Passenger Information Display

Passive Identification Device (SAUS)

Patient Identification Number - Medicine (HVTR)

Patrol Input Device (MCD)

Payload Insertion Device (NASA)

Pelvic Inflammatory Disease - Medicine

Perfect-Gas Isentropic Decompression - Engineering

Peripheral Interface Device - Computer science (EECA)

Permanent Station Identifier - United States Geological Survey (GIS)

Persistent Identifier (SAUS)

Personal Identification Device (MHDI)

Personal Identifier (SAUS)

Personality and Individual Differences - A publication

Personnel Identification Device - Navy (IAA)

Personnel Inquiry/Death/Occupational Illness - Report (DNAB)

Phenindione - or Phenylindandione - Anticoagulant

Photographic Intelligence Division (CARL)

Photo-Imageable Dielectric (SAUS)

Photo-Induced Desorption (SAUS)

Photointerpretation Department - Military

Photo Ionisation (or Ionization) Detector (SAUS)

Photoionization Detector

Photon-Induced Dissociation - For spectral studies

Photon Ionization Detector (EEVL)

Piaroa - Language code (ETLW)

Pictorial Information Digitizer - Computer science (DIT)

Picture Input Device (SAUS)

Pilot-Induced Deceleration

Pilot-Induced Decillation (SAUS)

Plan Identification Number (DOMA)

Planned Industrial Development (PA)

Planning and Integration Division (SAUS)

Plasma-Iron Disappearance - Hematology (MAE)

Poisons Information Database (SAUS)

Polarization Image Detector (SAUS)

Police Intelligence Detail (SAUS)

Political Intelligence Department - British - World War II

Portable Intruder Detector - Police and security equipment

Port Identification - Telecommunications (TEL)

Position Identifier (SAUS)

Postinertia Dyskinesia - Medicine (EDAA)

Primary Immunodeficiency Disease - Medicine

Prime Input Development

Prime Item Development (MCD)

Primitive Interface Definition (SAUS)

Process & Instrument Design (ACII)

Process Identification (SAUS)

Process Identifier - Computer science

Process-Induced Defect

Procurement Information Digest (AFM)

Procurement Item/Identification Description - DoD

Product ID (SAUS)

Product Identifier (SAUS)

Product Innovation and Design

Program Identifier (ACAE)

Program Information Department (SAUS)

Program Information Document - NASA (MCD)

Program Introduction Document (NASA)

Programming Information Distribution (SAUS)

Project Identification Code

Project Implementation Directive - Air Force

Prolapsed Intervertebral Disc - Medicine

Proportional, Integral, and Differential Gain (SAUS)

Proportional Integral Derivation

Proportional-Integral Derivative - Engineering

Proportional Integral Differential - Digital control-algorithm (IAA)

Proportional Integration Derivation

Proportional Integro-Differential (SAUS)

Proportional plus Integral plus Derivative (SAUS)

Proportional-Plus Integral-Plus Derivative - Digital control algorithm

Proprietary Information Disclosure

Protocol Identification Number (SAUS)

Protocol Identifier (SAUS)

Protruded Intervertebral Disc - Medicine

Pseudo Interrupt Device

Public Information Division - Army