a domestic or tamed animal kept for companionship or pleasure
the pony was a family pet
a pet cat
a fit of sulking or ill humour
Mother's in a pet
a synthetic resin made by copolymerizing ethylene glycol and terephthalic acid, widely used to make polyester fibres
polyethylene terephthalate
positron emission tomography, a form of tomography used especially for brain scans