knot - laye
- laticiferous vessel
- Latin
- Latin square
- latin-square design
- latitudinal cleavage
- lattice
- lattice automorphism
- lattice cell
- lattice conductivity
- lattice constant
- lattice defect
- lattice heat conductivity
- lattice irregularity
- lattice parameter
- lattice pattern
- lattice pitch
- lattice plane resolution
- lattice sampling
- lattice site
- lattice square
