Pacific Standard Time 
Pakistan Standard Time 
Pacific Strike Team 
Point of Spiral Tangent 
Provincial Sales Tax 
Payload Support Team 
Planetary Spectroscopy Telescope 
Primary surge tank 
Public Switched Telephone 
petroleum storage tank 
phase space theory 
Please Send Tell 
porcine somatotropin 
post-stimulus time 
Process Systems Team 
Program Support Team 
Project Scientist Team 
Provisioning Service Target 
Packet Switched Transmission 
Pad Service Tower 
Paired Selected Ternary 
Pair-Select Ternary 
palmar skin temperature 
pancreas-spleen transplantation 
pancreastatin 
paralytic shellfish toxins 
paroxysmal supraventricular tachycardi… 
parr-smolt transformation 
Parsa 
Partition Specification Table