| Acronym | Meaning |
| CSACM | Canonical Statistical Adiabatic Channel Model (in Reactions) |
| CAWAI | Commission On Atomic Weights And Isotope Abundances |
| FLIP | FLICE-inhibitory Protein |
| ASAS | Advanced Solid State Array Spectrometer |
| PSTM | Photon Scanning Tunneling Microscopy |
| DBRTS | Double-barrier Resonant Tunneling Structure |
| EXPRES | Expert System For Pesticide Regulatory Evaluations And Simulations |
| TGEP | Trace Gas Exchange Program |
| PALS | Positron Annihilation Lifetime Spectroscopy |
| SPARC | Scholarly Publishing & Academic Resources Coalition |