| Acronym | Meaning |
| PMP2 | (spin) Projected Moeller-Plesset Second-order (perturbation Theory) |
| TFELD | Thin Film Electroluminescent Device |
| ANR | Adiabatic Nuclear Rotation (in Calcns. On Mol. Collisions) |
| NSS | National Stream Survey (USA) |
| NDPD | National Data Processing Division |
| TROLL | Transmitter And Receiver Of Laser Light |
| MPW | Multiple Plane Wave (in Electronic-property For Metals) |
| DFS | Daily Flow System (file Within STORET) |
| FAES | Flame Atomic Emission Spectroscopy |
| EAZO | Energetically Active Zones Of The Ocean |