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