P.E.T. redirects here PET may mean: Politiets Efterretningstjeneste, the Danish Security Intelligence Service Pierre Elliot Trudeau, 15th Prime Minister of Canada 1968-1979, 1980-1984 Preliminary English Test, the second level of the Cambridge...

Polyethylene terephthalate, a common plastic material

Psychometric Entrance Test, an Israeli standardized test required for admission to most universities

Commodore PET (Personal Electronic Transactor), a 1970's era personal computer

Potentially Exempt Transfer, a concept in UK Inheritance Tax

Personal Terminal (MegaMan), a handheld device used in the Megaman Battle Network video games

Potential evapotranspiration, a measure of the atmospheric demand for water vapour from evaporation and transpiration

"Personal Electronic Thing" in the Starship Titanic video game, part of the player-computer persona communications system

Politiets Efterretningstjeneste, the Danish Security Intelligence Service

Parent Effectiveness Training (P.E.T.), a method of parenting, pioneered by Thomas Gordon, that emphasizes verbal communication, negotiation, and parent-child equality.

Preliminary English Test, the second level of the Cambridge University exams in English for Speakers of Other Languages (ESOL)

Peru Time, abbreviation of the time zone for Peru.

Pierre Elliot Trudeau, 15th Prime Minister of Canada 1968-1979, 1980-1984

Positron emission tomography, a three-dimensional imaging technique in nuclear medicine

Photoinduced energy transfer (or photoinduced electron transfer), a mechanism of molecular fluorescence