| Acronym | Meaning |
| LTK | Laser Thermal Keratoplasty |
| IMAPS | Interstellar Medium Absorption Profile Spectrograph |
| BOC | Bond-order Conservation (model In Calcns. On Reactions) |
| CMA | Chemical Manufacturers Association |
| MLC | Myosin Light Chain |
| ECISDT | Size-extensive CI With Single And Double And Triple Excitations |
| BHGM | Borehole Gravity Meter |
| HFIR | High Flux Isotope Reactor |
| SPPES | Spin Polarized Photoelectron Spectroscopy |
| BOA | Bidirectional Orbital Approximation (in Valence Bond Theory) |