PT

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PT, Pt, or pt may stand for:

Lead titanate, PbTiO_3, an abbreviation for a ferro-, pyro- and piezoelectric perovskite
.pt, Internet country code top-level domain (ccTLD) for Portugal
Patient, a medical abbreviation
Peat's symbol in the Unified Soil Classification System
Periodic table
Perpetual traveler, Permanent Tourist, or Prior Taxpayer
Physical therapy
Physical training, US military term for its exercise programs
Platinum, an atom
Polythiophene, a molecule
Porcupine Tree, a British progressive rock group.
Portugal's ISO country code
Portugal Telecom
Portuguese language
Prothrombin time, a measurement of blood coagulation
PT boat, a type of small fast ship used by the US Navy in World War II
Pulau Tiga, an island in South China Sea
Worker's Party (Brazil) ("Partido dos Trabalhadores")