| Acronym | Meaning |
| IRAK | Interleukin 1 Receptor-associated Kinase |
| DSIP | Delta-sleep Inducing Peptide |
| ETS | External Transcribed Spacer |
| IRGCHAZ | Intercritically Reheated Grain-coarsened Heat-affected Zone |
| MEP | Matrix Effective Potential (for Scattering Calcns.) |
| LIBS | Ligand-induced Binding Sites |
| DTA | Direct Toxicity Assessment (of Wastewater Discharges) |
| MRBW | Multireference Brillouin-Wigner |
| GIXR | Grazing Incidence X-ray Reflectivity |
| NAREL | National Air And Radiation Environmental Laboratory |