141 PTA definitions

Physical Therapist Assistant 
Physical Therapy Assistant 
Percutaneous Transluminal Angioplasty 
Preferential Trade Area 
Propulsion Test Article 
Parent Teacher Association 
Parent-Teachers Association 
packed tower aeration 
Pakistan Telecommunication Authority 
Planar Turbulence Amplifier 
plasma thromboplastin antecedent 
Plasma Transferred Arc 
Potential Toxic Area 
purified terephthalic acid 
parallel tubular arrays 
pass the ammunition 
Passenger Transport Authority 
peak twitch amplitude 
peritonsillar abscess 
persistent truncus arteriosus 
Pilotless Target Aircraft 
position, time, altitude 
Post Turbine Augmentation 
Post-Test Analysis 
Prevention of Terrorism Act 
Primary Target Area 
primitive trigeminal artery 
prior to admission 
Prior To Arrival 
Procurement Technical Assistance