110 LSS definitions

Logistics Support System 
Life Support System 
Life Support Systems 
Loop Switching System 
Life Support Subsystem 
LANCER BOSS 
Landing, Separation Simulator 
LANSS 
Large Space Simulator 
Launch Support Services 
Life Span Study 
Littoral Surveillance System 
Local Switching System 
Logistics Support Squadron 
LARGE SPACE STRUCTURE 
Large Space Structures 
Launch Support Specialists 
Launch Support System 
Learning Support Services 
Lightning Sensor System 
Limited Storage Site 
Link Status Signal 
Load Sensing System 
local sensor subsystem 
Logistic Support System 
Long story short 
lumbar spinal stenosis 
Lunar Soil Stimulant 
Laboratory for Space Systems 
Laboratory for Student Success 
Laboratory for Surface Studies 
Laboratory Safety System 
Laboratory Services Section 
Laboratory Support System 
Ladder Safety System 
Ladder Support Software 
lagging DNA strand synthesis 
Lahore Stock Services 
Lamb-Shift Source 
laminar shear stress