PPI
PPI may refer to:
Science and technology
Biochemistry
- PPi, the anion P2O74−, a pyrophosphate
- Polyproline I helix, a type of polyproline helix
- Protein–protein interaction
Medicine
- Patient package insert, a document to be provided to a patient providing details of their medication
- Patients and public involvement (PPI), a UK healthcare initiative
- Prepulse inhibition, of a later pulse
- Proton-pump inhibitor, of gastric acid secretion
- Psychopathic Personality Inventory, a personality test
- Psychophysiological Interaction, fMRI analysis technique
Computing
- Parallel Peripheral Interface, of the Blackfin processor
- Programmable Peripheral Interface, Intel 8255 chip
- Programmable Peripheral Interconnect, an implementation of autonomous peripheral operations in microcontrollers
- Pixels per inch, number of pixels per inch in a display
Other science and technology
- Pulsational pair-instability supernova
- Gabarit passe-partout international, in railways
- Picks per inch, a unit of textile measurement
- Plan position indicator, radar display
- Polymethylene polyphenylene isocyanate
Business and organizations
- Italian People's Party (1919) (Partito Popolare Italiano), a Christian-democratic party
- Italian People's Party (1994) (Partito Popolare Italiano), a Christian-democratic party
- Peace Party of India, Uttar Pradesh
- Perusahaan Perdagangan Indonesia, Indonesian trading company
- Philips Phonographische Industries, later Philips Records
- Phonographic Performance Ireland, Irish music performance rights organisation
- Pirate Parties International, organisation for Pirate Parties
- Polly Peck International, UK company collapsed in 1991
- Primarily Primates, primate sanctuary, Texas, US
- Productivity Products International, US software company later renamed Stepstone
- Progressive Policy Institute, a U.S. public policy think tank
- Pakistan Press International, a Pakistani news agency
Other uses
- Pareto priority index, to prioritize projects
- Payment protection insurance
- Positive polarity item
- Producer price index a price index that measures the average changes in prices received by domestic producers for their output.
- Pre-purchase inspection
- Pulse polio immunization
- Port Pirie Airport, IATA airport code "PPI"
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