Launch Processing System 
lines per second 
liquid phase sintering 
Low Pressure Sensor 
Landsat Processing System 
Launch Phase Simulator 
Lipopolysaccharide 
liters per second 
Local Positioning System 
Lotus Professional Services 
Laboratoire de Physique des Solides 
Large Processing Station 
Launch Processor System 
Library Programs Service 
Lightning Protection Subsystem 
Lightning Protection System 
Line Profile System 
Line Protection Switching 
lipase 
Local positioning systems 
Local Preventative Strategy 
Low Power Satellite 
low pressure sodium 
Low-Power Schottky 
Laboratory for Physical Sciences 
Laboratory of Plasma Studies 
Laboratory Program Summary 
Lacombe Police Service 
lactoperoxidase system 
Ladysmith Public School