LPI

LPI may refer to:

Places

• Linköping City Airport (IATA code), Sweden
• Linus Pauling Institute, at Oregon State University, US
• La Pyramide Inversée, a skylight constructed in an underground shopping mall in front of the Louvre Museum in France
• Lady Parry Island, an uninhabited island in Nunavut, Canada

Organizations

• Lunar and Planetary Institute, a scientific research institute dedicated to study of the solar system, its formation, evolution, and current state
• Linux Professional Institute, a non-profit organization that provides vendor-independent professional certification for Linux system administrators and programmers
• LPI Media, a gay and lesbian publisher in the United States

Science and technology

• Dye penetrant inspection or liquid penetrant inspection, an inspection method used to locate surface-breaking defects in all non-porous materials
• Lysinuric protein intolerance, an autosomal recessive metabolic disorder affecting amino acid transport
• Leaf plastochron index, a measure of plant leaf age based on morphological development
• Lysophosphatidylinositol, an endocannabinoid neurotransmitter
• Living Planet Index, an indicator of the state of global biological diversity, based on trends in vertebrate populations of species from around the world
• Lines per inch, a measurement of printing resolution
• Laser Peripheral Iridotomy; See Glaucoma surgery
• Liquid phase injectors and liquid propane injection, in autogas

Economics and finance

• Limited Price Indexation, a pricing index used in the calculation of increases in certain components of scheme pension payments in the UK
• Legatum Prosperity Index, an annual ranking developed by the Legatum Institute

Other uses

• Language Proficiency Index, a Canadian standardized test for English proficiency written and administered by the University of British Columbia Applied Research and Evaluation Services
• Linear partial information, a method of making decisions based on insufficient or fuzzy information
• La Paz incident, occurred in May 1863 at the ghost town of La Paz in Confederate Arizona and was the westernmost confrontation of the American Civil War
• Licensed private investigator, a type of private investigator

See also

• Low probability of intercept radar (LPIR), a radar system designed to be difficult to detect