- lohit
- loin
- logistic assessment
- load_bearing
- lethal dose
- lucy
- laney
- lit. the arrow is shot—the die is cast
- log in (log on)
- logan
- line key
- laminar flow clean room
- library file editor
- library
- library track
- library directory
- livingroom suite
- landwards
- local service area
- local race
- local switching facility
- local side
- lumbar puncture
- lumbar enlargement
- lit. delhi is still a far cry—fulfilment of a dream
- libel
- libe dem
- lbj
- lyndon johnson
- lightly armored
- lightly
- left wing
- left winger
- lefteye flounder
- lower segment caesarean section
- lower peninsula
- low_lying
- lower house
- Liberty ship
- lytton
- laptop
- latex paint
- loosely coupled
- legionnaire
- larval
- Lates calcarifer
- light diet
- light fingered
- lyssavirus
- lossy compression