PDI

PDI may refer to:

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OrganizationsEdit

Investigations Police of Chile (Template:Langx)
Party for Justice and Integration (Template:Langx), an Albanian political party
Pacific Data Images, former US computer animation company
Paul Drude Institute for solid state electronics, German research institute
Philippine Daily Inquirer, a newspaper
Plumbing & Drainage Institute, US
Ideal Democratic Party, political party in Rwanda
Partai Demokrasi Indonesia (Indonesian Democratic Party) (1973–2004), a defunct political party
Polo Democrático Independiente (Independent Democratic Pole), a Colombian democratic political party

Pyridinediimine, organic compounds used as ligands
Perylenediimide, a rylene dye
Photodynamic inactivation, or antimicrobial photodynamic therapy
Protein dispersibility index, in water
Protein disulfide isomerase, an enzyme
Polydispersity index, molecular weight distribution of polymers
Pentamethylene diisocyanate, a bio-based diisocyanate prepared from pentamethylene diamine