| Acronym | Meaning |
| PONA | Paraffins, Olefins, Naphthalenes, And Aromatics (in Petroleum Analysis) |
| OVC | Optimized Valence Configuration |
| GISAXS | Grazing Incidence Small Angle X-ray Scattering |
| PFNA | Pulsed Fast-neutron Analysis |
| DZHD | Double-zeta Huzinaga-Dunning (wave Functions) |
| NVSS | NRAO VLA Sky Survey |
| MPRSA | Marine Protection |
| ASA | American Society Of Agronomy |
| PHF | Perturbative Hartree-Fock |
| NIRA | Near Infrared Reflection Analysis |