Meaning of PET in English

PET

noun [ U ]

1.

/ ˌpiː iː ˈtiː; NAmE / an artificial substance used to make materials for packaging food, including plastic drinks bottles (the abbreviation for 'polyethylene terephthalate')

2.

/pet/ ( medical ) a process that produces an image of your brain or of another part inside your body (the abbreviation for 'positron emission tomography') :

a PET scan

3.

/pet/ a British test, set by the University of Cambridge, that measures a person's ability to speak and write English as a foreign language at an intermediate level (the abbreviation for 'Preliminary English Test')

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.