| Abbreviation | Definition |
|---|---|
| PLAR | Probability Large of Always Reject |
| PLOF | Postfix Longer Operands First |
| PLP | Perceptual Linear Predictive |
| PLS | Partial Least Squares |
| PLS | Polynomial Local Search |
| PLS | Pressure-Length Scale |
| PM | Plus And Minus |
| PM | Plus or Minus |
| PM | Polygonal Map |
| PM | Power Matrix |
| PM | Power Method |
| PM | Pseudo Manifold |
| PMA | Physics Mathematics and Astronomy |
| PMCC | Product moment correlation coefficient |
| PMF | Probability Mass Function |
| PMQ | Prize Mathematics Quiz |
| PMSA | Proviso Mathematics and Science |
| PMSA | Proviso Mathematics and Science Academy |
| PMSS | Primary Mathematics and Science Specialists |
| PMT | Personal Mathematics Tutorial |