| Acronym | Meaning |
| BORT | Bond Orbital Resonance Theory |
| AMPA | Alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic Acid |
| TMS | Transmission Moessbauer Spectroscopy ~ ~ |
| BLDSC | British Library Document Supply Centre |
| MEG4 | Multiexponentially Generated 4 (wave Functions) |
| ESC | Endometrial Stromal Cell |
| SSB | Semiclassical Sudden Born (approxn. In Ion-atom Collisions) |
| MGE | Mobile Genetic Element |
| IPEM | Ion-photon Emission Microscopy |
| PEPICO | Photoelectron-photoion Coincidence Spectroscopy |