| Acronym | Meaning |
| MIRA | Multivariate Image Rank Analysis |
| IPPP | Inner Projections (of The) Polarization Propagator (in Calcns. On Nuclear Spin Coupling) |
| RTP | Room Temperature Phosphorescence |
| CRAMPS | Combined Rotation And Multiple-pulse Spectroscopy |
| EMAG | Electron Microscopy And Analysis Group |
| LGIC | Ligand-gated Ion Channel |
| IASI | Infrared Atmospheric Sounding Interferometer |
| IRMA | Immunoradiometric Assay |
| B/F | Bag Filter |
| CHIME | (chem. Th-U-total Pb Isochron Method) |