P.A.A.Phillips Academy, Andover
p.m.post meridiem (after noon)
p.p.per pro (used before signing in a person’s absence)
P02Partial Pressure of Oxygen
PA1. personal assistant.
2. Panama.
3. Perfect Attendance.
PAC1. Public Affairs Committee.
2. Public Accounts Committee.
PACEProperty Advisers to the Civil Estate (Agency of the cabinet office)
PACTPartnership Against Car Theft
PACTSParliamentary Advisory Committee for Transport Safety
PAGProjections Advisory Group (EUETS, DTI-LED Group)
PAGAPublic Address and General Alarm
PAHPolycyclic Aromatic Hydrocarbons
PAHOPan American Health Organization
PAHsPolycyclic aromatic hydrocarbons
Palaeont. in Palaeontology; (in titles) Palaeontology, -ical pa. pple.passive participle, past participle
PAMOCProperties of Atoms and Molecules in Molecular Crystals
PANPlanning Advice Note (Scotland)
PAPAPrepare to Abandon Platform Alarm
PAR1. PNNI augmented routing.
2. Parabolic Aluminum Reflector.
PARKPottstown AMATEUR RADIO KLUB
Partridge(quoted from) E. Partridges Dictionary of Slang and
PASPower Assisted Steering
PATProfessional Association of Teachers
Path.(as label) in Pathology; (in titles) Pathology, – ical
PAVDPhysical Agents (Vibration) Directive
PAWAPortland Amateur Wireless Association
PBAPredictive Brake Assist
PBBPolybrominated Biphenyl
PBCPeak Braking Coefficient
PBDProgrammer Brain Damage
PBDEPolybrominated Diphenylether
PBITProfit Before Interest and Taxation
PBK1. Phi Beta Kappa.
2. Phonebook.
3. Pro Bike Kit.
4. Perfect Bass Kit.
5. Premier Bath and Kitchen.
PBKACProblem Between Keyboard and Chair
PBLProblem-based learning
PBPR1. Palm Beach Public Relations.
2. Packed Bed Photo Reactor.
3. Patient based partner referral.
PBS1. Performance Based Standards (Australia).
2. phosphate-buffered saline.
PBT1. Polybutylene Terephthalate.
2. Persistent, Bioaccumulative or Toxic.
PC1. Passenger Car.
2. Public Citizen (US).
3. Personal Computer.
4. Postal Code (United Kingdom).
PCB1. Polychlorinated Biphenyl.
2. Printed Circuit Board.
3. Please Call Back.
PCFCOPassenger Car Fuel Consumption Order
PCMBProkaryotic Cell and Molecular Biology
PCNPolychlordinated Naphthalene
PCNTAPassenger Car National Type Approval
PCRpolymerase chain reaction
PCTPatent Cooperation Treaty
PCV1. Passenger Carrying Vehicle (Not for hire organisation reward).
2. Passenger Carrying Vehicle.
3. Pedestrian Controlled Vehicle.
PCYLIHPlease Cross Your Legs, I Have Only One Nail Left
PD1. Public Domain.
2. program director.
PDAPublic Display of Affection
PDBProgressive Deformable Barrier
PDDProject Definition Document.
PDEPicture Display Equipment
PDFPortable Document Format
PDMProduct Data Management
PDPPositive Displacement Pump
PE1. provider edge.
2. Peru.
3. Physical Education.
4. Preliminary Evaluation.
PEAPhillips Exeter Academy
PEBCAKProblem Exists Between Chair And Keyboard
PEBKACProblem Exists Between Keyboard And Chair
PECPackaging of Explosives for Carriage Regulations
PECAProtocol (to European Agreement) on European Conformity Assessment
PEELPoint, Example, Evidence, Link
PEFSProcess Engineering Flow Scheme
PELVPremature End-of-Life Vehicle
PEM1. Polymer Electrolyte Membrane.
2. Photo electron microscope.
PEMFCProton Exchange Membrance Fuel Cell
PEMSPortable Emissions Measurement System
PEODProgram Evaluation and Organizational Development
PEPPan-European Programme
perh. perhaps Pers.Persian
PERKESOPertubuhan Keselamatan Sosial Malaysia
PESGPersonal Export Sales Group
PETPolyethylene Terephthalate
PETMPaleocene-Eocene Thermal Maximum
Petrol.(as label) in Petrology; (in titles) Petrology, – ical
Pettman(quoted from) C. Pettmans Africanderisms
PF&HOMPrinted, Framed & Hanging On My Wall
PFAProduction Flow Analysis
PFC1. Perfluorcarbon.
2. Peak Friction Coefficient.
PFCIPediatric Functional Capacity Index
PFIPrivate Finance Initiative
PG1. Performance Gain.
2. Papua New Guinea.
PG(W)PPPlanning Guidance (Wales): Planning Policy (published april 1999)
PGADPersistent Genital Arousal Disorder
PGDBMPost Graduate Diploma in Business Management
PGDCAPost Graduate Diploma in Computer Application
PGDEPost Graduate Diploma in Education
PGECETPost Graduate Engineering Common Entrance Test
PGIMERPostgraduate Institute of Medical Education and Research
PGSWMParlimentary Group for Sustainable Waste Management
PHPhilippines, Republic of the
PHATPamoja Hip Afrika Tunawakilisha
PHB1. per-hop behavior.
2. poly-beta-hydroxybutarate.
3. Polyhydroxybutyrate.
PhDPiled Higher and Deeper
Philol.(as label) in Philology; (in titles) Philology, – ical
Philos.(as label) in Philosophy; (in titles) Philosophy, – ic
Photogr.(as label) in Photography; (in titles) Photography, -ical
PHVsPrivate Hire Vehicles
Phys.physical; (rarely) in Physiology
Physiol.(as label) in Physiology; (in titles) Physiology, -ical
PI1. Performance Indicator.
2. Project Integra (Hants Districts & Unitaries Waste Management Contract).
PIA1. Petroleum Industry Association.
2. Personal Injury Accident.
PICNICProblem In Chair, Not In Computer
Pict.(in titles) Picture, Pictorial
PIDPelvic inflammatory disease
PIH1. prolactin inhibiting hormone.
2. Partners in Health.
PIMOPaper Industry Materials Organisation
PIMOTMotor Transport Institute (Poland)
PIMPPee In My Pants (of tenin combination)
PINSPersonal Indentification Number String
PIRGPublic Interest Research Group
PlantTFDBPlant Transcription Factor Database
PLBKACProblem Lies Between Keyboard And Chair
PLC1. phospholipase C
2. ( Plc ) – public limited company
PLEBPeoples Law Enforcement Board
PLGPrivate and Light Goods
PLHAPeople Living with HIV/AIDS
PLMProduct Lifecycle Management
PLMKOPlease Let Me Know, Ok?
PLNperipheral lymph nodes
PLOKTAPress Lots Of Keys To Abort
PM1. St. Pierre And Miquelon.
2. Program/Project Manager.
3. Parking Management.
4. Particulate Matter.
PMACPrimary Ministers Approval Certificate
PMFBIPardon Me For Butting In
PMFBRPardon Me For Being Rude
PMFJIPardon Me For Jumping In
PMFJIHPardon Me For jumping In Here.
PMMAPolymethylmethacrylate
PMPParticulate Measurement Programme
PMRSAPrince Michael Road Safety Awards
PMSPunctuation Made Simple
PMYMHMMFSWGADPardon Me, You Must Have Mistaken Me for Someone Who Gives A Damn
PNCPolice National Computer
PNCAPPrimary (safety) New Car Assessment Programme
PNECPredicted no Effect Concentration
PNGVPartnership for a New Generation of Vehicles (USA)
PNNIPrivate Network-to-Network Interface
PNSPeripheral nervous system
POC1. Point of Connection (electricity).
2. Planning Officers Society (formerly cpos).
3. Prisoner Of Chat.
4. Peeping Other Chatters.
PODPort/ Point of Destination
POETSPiss On Everything, Tomorrows Saturday; Piss Off Early, Tomorrow
POITSPiss On It Tomorrows Saturday
Pol.1. Polish.
2. (as label) in Politics; (in titles) Politics, – al.
Pol. Econ.in Political Economy
Polit.(in titles) Politics, -al
POMPPervasive Object Model Project
POMSTERPlacing on the Market and Supervision of Transfer of Explosives Regulations
POPPoint Of Presence; Post Office Protocol
POQ1. Piss Off Quickly.
2. Per Order of Questions.
POQADCPiss Off Quickly and Dont Come Back!
Porc.(in titles) Porcelain
POSSLQPerson of Opposite Sex Sharing Living Quarters
POTWPublicly Owned Treatment Works
PPA1. Power Purchase Agreement.
2. Pay Per Action.
PPC1. Pakistan Penal Code.
2. Pay per click.
3. Pollution Prevention & Control Regulations.
4. Planning Policy Guidance.
5. Pollution Prevention Guidance.
PPEPersonal Protective Equipment
ppl. a., pple. adj.participial adjective
PPM1. Public Performance Measure.
2. Parts per Million.
PPNProgrammer Project Number (currently known as User ID)
PPORDProduct and Process Oriented Research and Development (Reach)
PPP1. Petty Pet Peeve.
2. Pointto Point Protocol.
3. Public Private Partnerships.
PPPPPrevious Paragraph was Polemical Position
PPTPowe Pallet Truck, Similar to FLT
PPTSProspective Piloted Transport System (Russian Federal Space Agency)
PQQPre-Qualifications Questionaire
PR1. public relations.
2. Puerto Rico.
3. Problem Report.
4. Project Request.
5. Page Rank.
6. Producer Responsibility.
Pr.1. Provencal
2. ( pr. ) – present
pr. pple.present participle
PRAPetrol Retailers Association
Pract.(in titles) Practice, -al
PRCOPolicing and Reducing Crime
PRCUPolicing and Reducing Crime Unit
PRDProgram Requirements Document.
prec.preceding (word or article)
PRGProducer Responsibility Group
PRHProlactin releasing hormone
PRIPrevention Routiere International
PRIAPartial Regulatory Impact Assessment
Princ.(in titles) Principle, -s
PRNPackaging Recovery Note (Proof of Compliance under Packaging Regs)
PROProducer Responsibility ObligationS (Packaging Waste) RegulationS
Probl.(in titles) Problem
Proc.(in titles) Proceedings
PS1. Post Scriptum.
2. Post Script.
3. Play Station.
4. Palestine.
5. Physical Science.
6. Pull Sits.
7. Public Sewer.
8. Polystyrene.
PSAPublic Service Agreement
PSAE1. Pittsburgh Society of Association Executives.
2. Prairie State Achievement Examination.
PSASPersistent Sexual Arousal Syndrome
PSBProgramme Supervisory Board
PSBRTFPenn State Bus Research and Testing Facility
PSDBPolice Scientific Development Branch
PSDEProgramme for the Study of Discrimination and Exclusion
PSEPonce, Puerto Rico Airport code. Mercedita Airport.
PSPFPublic Symphisis Peak Force
PSRPassenger Services Requirement
PSSHPhysical Symbol System Hypothesis
PSSM1. Position-specific scoring matrix.
2. Persatuan Sains Sosial Malaysia (Malai).
PSSRUPersonal Social Services Research Unit (UK)
PSTCPak Swiss Training Centre
PSTNPublic Switched Telephone (Telephony) Network
PSVARPublic Service Vehicle Accessibility Regulations
Psychol.(as label) in Psychology; (in titles) Psychology, -ical
PT1. Physical Training.
2. Portugal.
3. Public Transport.
PTAPassenger Transport Authority
PTEPassenger Transport Executive
PTI1. Pennsylvania Transport Institute.
2. Periodic Technical Inspection.
PTO1. Patent and Trademark Office (USGovt).
2. Please Turn Over.
3. Permission To Officiate.
Publ.(in titles) Publications
PUWER1. Provision & Use of Work Equipment Regulations 1988.
2. Proposed Provision & Use of Work Equipment Regulations 1997.
PV-UKBritish Photovoltaic Association
PVC1. Polyvinyl Chloride.
2. permanent virtual circuit.
PW1. Pathetic Wanker.
2. Pow Wow.
3. Palau.
PWGPathology Working Group
PWTPenny weight (see also dwt)
PYLUSDPlacentia Yorba Linda Unified School Distericct