- lath cutter
- lathe
- lathe control system
- lathe dog
- lathe mandrel
- lathe work
- lattens
- lattice coil
- lattice deformation
- lattice filter
- lattice irregularity
- lattice self diffusion
- lattice truss
- latticed bar
- launch vehicle
- launching power
- laundry machine
- law
- law of aveages
- law of conservation of angular momentum
- law of cooling
- law of electromagnetic induction
- law of gas diffusion
- law of independent propagation of light
- law of multiple proportions
- law of probability
- law of similitude
- lawn mower
- lawn roller
- lay
- lay a batch
- lay aside
- lay panel
- lay shaft
- layaside
- layer
- layer insulation test
- layer metal
- layer resistance
- layer short
- laying out bench
- layout
- layout character
- layout plot
- layover
- layshaft
- lc tank circuit
- lead
- lead and acid battery
- lead angle