| Acronym | Meaning |
| HILDA | High-Latitude Exchange/Interior Diffusion-Advection Model |
| ROC | Receptor-operated Ca2+ Channel |
| ROS | Restricted (or Roothaan) Open-shell (Hamiltonian) |
| CMB | Completely Mixed Batch |
| SARP | Safety Analysis Report For Packaging |
| MPPT | Moeller-Plesset Perturbation Theory |
| AMS | American Mathematical Society |
| QFAA | Quartz Furnace Atomic Absorption |
| SDY | Spin Drawn Yarn |
| RITP | Recycling Isotachophoresis |