Local Development Scheme 
Local Digital Switch 
Latter Day Saints 
large disk storage 
Landing, Deservicing and Safing 
Landing/Deceleration Subsystem 
Laser Dazzle Sight 
Laser Detecting Set 
Laser Docking Sensor 
Latter Day Saint 
Launch Detection Satellite 
Layered Defense System 
Leak Detection System 
Level Discrete Set 
Lightning Detection System 
Linear Data Set 
Linear Dichroism Spectrometry 
liquid delivery system 
lithium dodecyl sulfate 
Livermore Data System 
Load Demand Spindle 
Logic Design System 
Long Distance Service 
Chuch of Jesus Christ of Latter-day Sa… 
Labor Distribution System 
labyrinthine-defective subjects 
lacrimal drainage system 
Landesamt fur Datenverarbeitung und St… 
Landing, Deceleration and Safing 
Language Development Survey