- lean nitrogen oxides catalyst
- lean nitrogen oxides trap
- lean oil
- lean production
- lean strategy
- Leap
- leap
- leap day
- leap filament
- leapfrog algorithm
- leapfrog circuit
- leap-frog integration scheme
- leapfrog method
- leap frog scheme
- leap-frog scheme
- leapfrog scheme
- leap function
- leap month
- leap second
- leap second adjustment
- leap year
- learnability
- learned behavior
- learned behaviour
- learned helplessness