| LSB | least significant bit; left sternal border; left scapular border; long spike burst |
|---|---|
| NLS | Names Learning Test; Neu-Laxova syndrome; nonlinear least squares; normal lymphocyte supernatant |
| PLSD | protected least significant difference |
| RLS | recursive least square; restless leg syndrome; Ringer lactate solution; Roussy-Levy syndrome |
| RLSL | recursive least square lattice |