| Acronym | Meaning |
| LTTA | Low Temperature Thermal Aeration Process |
| LCAO | Linear Combination Of Atomic Orbitals |
| EPS | Expanded Polystyrene |
| CMP | Compact Model Potential |
| ABS | Atomic Beam Scattering |
| IINS | Incoherent Inelastic Neutron Scattering |
| BLC | BACT/LAER Clearinghouse |
| MCSCRF | Multiconfigurational Self-consistent Reaction Field |
| NGL | Natural Gas Liquid (usually Ethane Or Propane) |
| RUP | Rumen-undegradable Protein |