| Acronym | Meaning |
| OPE | Operator Product Expansion |
| TCCL | Toxic Chemicals Control Law (Korea) |
| HAPEX | Hydrological And Atmospheric Pilot Experiment |
| IPN | Interpenetrating Polymer Network |
| RP/M | Reinforced Plastics/mortar |
| LIESA | Laser Induced Emission Spectral Analysis |
| IGCAR | Indira Gandhi Center Atomic Research |
| LITJ | Laser-Induced Temperature Jump |
| SERHF | Symmetry-equivalenced Restricted Hartree-Fock |
| IRLG | Interagency Regulatory Liaison Group |