Science

• Isopentenyl pyrophosphate
  Isopentenyl pyrophosphate
  Isopentenyl pyrophosphate is an intermediate in the classical, HMG-CoA reductase pathway used by organisms in the biosynthesis of terpenes and terpenoids. IPP is formed from acetyl-CoA via mevalonic acid...
  
  , a metabolite of both the mevalonate pathway and non-mevalonate pathway of isoprenoid biosynthesis
• Ionospheric Pierce Point
  Ionospheric pierce point
  Most Global Positioning Systems are subjected to errors induced by the ionosphere. Because ionospheric delay affects the speed of microwave signals differently depending on their frequency—a characteristic known as dispersion—delays measured on two or more frequency bands can be used to measure...
  
  , the point where the line-of-sight between a satellite and ground station intersects an ionospheric shell model
• Integrated Product Policy, an environmental policy of the European Union
• IPP, a variant of interactive proof protocol with PP instead of BPP verifier
• IPP (Independant Power Producer)

Information technology

• Integrated Performance Primitives
  Integrated Performance Primitives
  Intel Integrated Performance Primitives is a multi-threaded software library of functions for multimedia and data processing applications, produced by Intel....
  
  , an Intel multimedia and data processing software library. Contains a broad range of algorithms usable in signal processing
• Internet Printing Protocol
  Internet Printing Protocol
  In computing, the Internet Printing Protocol provides a standard network protocol for remote printing as well as for managing print jobs, media size, resolution, and so forth....
  
  , a protocol to print files on Internet/Intranet printers
• Insilicos Proteomics Pipeline, a set of software tools for use in biological experiments involving proteins
• Internet Presence Provider, a provider of high-speed webhosting space; originated 1996 amongst ISP

Organizations

• Irish Parliamentary Party
  Irish Parliamentary Party
  The Irish Parliamentary Party was formed in 1882 by Charles Stewart Parnell, the leader of the Nationalist Party, replacing the Home Rule League, as official parliamentary party for Irish nationalist Members of Parliament elected to the House of Commons at...
  
  , a defunct political party
• Max-Planck-Institut für Plasmaphysik
  Max-Planck-Institut für Plasmaphysik
  The Max-Planck-Institut für Plasmaphysik is a physics institute for the investigation of plasma physics, with the aim of working towards fusion power...
  
  , a physics institute in Garching, Germany for the investigation of plasma physics
• Porto Polytechnic Institute, a higher learning Portuguese institution composed of diverse polytechnic schools based in Porto.

Society

• IPP Media
  IPP Media
  IPP Media is one of East Africa's largest Media conglomerates. Its chief executive officer is Reginald Mengi.IPP Media is a private company, held under IPP Group and based in Dar es Salaam, Tanzania. IPP Media comprises nine newspapers, which are published in both English and Swahili, two...
  
  , one of East Africa's largest Media conglomerates
• Imprisonment for Public Protection
  Imprisonment for public protection
  In the United Kingdom, Indeterminate Public Protection prison sentences are a form of indeterminate sentence...
  
  , sometimes given as indeterminate sentence for public protection
• Individual Pension Plan
  Individual Pension Plan
  An Individual Pension Plan or IPP is a Canadian retirement savings vehicle. An IPP is a one-person maximum Defined Benefit Pension Plan which allows the plan member to accrue retirement income on a tax-deferred basis...
  
   (IPP)
• Industrial Pretreatment Program, a water/wastewater industry partnership program to serve municipal or regional water pretreatment needs
• Independent Power Producer
  Independent Power Producer
  An Independent Power Producer is an entity, which is not a public utility, but which owns facilities to generate electric power for sale to utilities and end users...
  
  , a privately owned power producer (power plant)
• International price program
• Intellectual Property Protection
• Intermountain Power Project, a coal-fired power plant near Delta, Utah, built to supply power to California

Places

• Ipp, the Hungarian
  Hungarian language
  Hungarian is a Uralic language, part of the Ugric group. With some 14 million speakers, it is one of the most widely spoken non-Indo-European languages in Europe....
  
   name for Ip
  Ip, Salaj
  Ip or Ipp is a commune in Sălaj County, Romania. It is composed of five villages: Cosniciu de Jos, Cosniciu de Sus, Ip, Zăuan and Zăuan-Băi.The commune was the site of the 1940 Ip massacre....
  
   Commune, Sălaj County
  Salaj County
  Sălaj is a county of Romania, in the historical regions of Crișana and Transylvania, with the capital city at Zalău.-Geography:Sălaj county has a total area of ....
  
  , Romania
  Romania
  Romania is a country located at the crossroads of Central and Southeastern Europe, on the Lower Danube, within and outside the Carpathian arch, bordering on the Black Sea...