Local Descriptor Table 
Lightning Data Transport 
Long Distance Transmission 
LANDTRAC 
Laser Display Technology 
LOGIC DESIGN TRANSISTOR 
Lowest Dose Tested 
Light Duty Truck 
Line appearance on a Digital Trunk 
Linear Differential Transformer 
Linear Displacement Transducer 
Local Daylight Time 
Language-Dependent Translator 
Large Diameter Target 
larval development test 
late distal tubule 
lateral dorsal tegmental 
laterodorsal tegmental 
laterodorsal tegmental nucleus 
laterodorsal tegmentum 
Law Debenture Trust 
Least Distance Track 
leukocyte doubling time 
Leveraged Derivatives Transaction 
lexical decision task 
Light Duty Trucks 
Lightning Data Transfer 
Link Diversion Transactor 
Loads and Dynamics Team 
Local Description Table