left-to-right 
later 
LAUTRETTE 
long term relationship 
long terminal repeat 
Latency Timer Register 
Lead Technical Representative 
Letter 
Lifetime relationship 
Line Terminal Regenerator 
Load Task Register 
Local Transport Restructuring 
Laboratory Technology Research 
Lake Terminal Railroad 
large terminal repeat 
laryngotracheal reconstruction 
Lattice Test Reactor 
Liberal Talk Radio 
licensing topical reports 
Lichenoid tissue reaction 
Lighter 
Litre 
local twitch response 
Lockheed Training Reactor 
LOEWS CORP. 
Loews Corporation 
log titer reduction 
long tandem repeat 
long term repeat 
Long Term Requirement