| Acronym | Meaning |
| PAX | Photoemission Of Adsorbed Xenon |
| STS | Sequence-tagged Site |
| EMAT | Electromagnetic-acoustic Transducers |
| DQSK | Drawing Quality Special Killed |
| GMP2 | Generalized Moeller-Plesset Second-order (perturbation Theory) |
| MCMC | Markov Chain Monte Carlo |
| RCHF | Relaxed-core Hartree-Fock (approxn. In Calcns. On Mol. K-shell Excitation Spectra) |
| PTA | Packed Tower Aeration |
| DCP-OES | Direct Coupled Plasma-optical Emission Spectroscopy |
| MCC | Microcrystalline Cellulose |