PI

See also: Appendix:Variations of "pi"

English

Abbreviation

PI

  1. Piauí, a state of Brazil.

Initialism

PI

  1. Initialism of partial induction (see AI)
  2. Initialism of personal injury.
  3. Initialism of politically incorrect (see PC)
  4. Initialism of principal investigator (lead researcher on a grant-funded project)
  5. Initialism of Prison Industries (the prison-run work program for inmates)
  6. Initialism of private investigator.
  7. Initialism of pseudoincest.
  8. (biochemistry) Abbreviation of phosphatidylinositol (a phospholipid component of eukaryotic cell membranes, also abbreviated in PtdIns)
  9. (electronics) Initialism of power integrity.
  10. (informatics, SGML, XML) Initialism of Processing Instruction.
  11. (organic chemistry) Initialism of polyimide.
  12. (colloquial, Philippines) Initialism of the Philippines (PI standing for Philippine Islands)
    We're going back to the PI for a vacation this summer.
  13. Abbreviation of prohibited immigrant.

Anagrams

Portuguese

Abbreviation

PI

  1. Abbreviation of Piauí. (Brazilian state)

Tagalog

Etymology

Initialism of putang ina

Noun

PI

  1. (vulgar) prostitute mother
  2. (colloquial, vulgar) a very contemptible person
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