(uncountable, organic chemistry) Initialism of polyethylene terephthalate. / (countable, medicine) Acronym of positron emission tomography. / (countable, genetics) Acronym of paired-end tag.

(biblical) Abbreviation of Peter.

Abbreviation of petition.

(Ireland, Tyneside) A term of endearment usually applied to women and children.

(transitive) To stroke or fondle (an animal). / (transitive, intransitive, informal) To stroke or fondle (another person) amorously. / (dated, transitive) To treat as a pet; to fondle; to indulge.

An animal kept as a companion. / (by extension) Something kept as a companion, including inanimate objects. (pet rock, pet plant, etc.)

A fit of petulance, a sulk, arising from the impression that one has been offended or slighted.

Favourite; cherished; the focus of one's (usually positive) attention. / Kept or treated as a pet.

plural of petting

The act of stroking or gently patting an animal. / (sex) The act of kissing, stroking, etc., a person in a sexual manner. / The act of indulging or treating as a favourite.