| Acronym | Meaning |
| WHO | World Health Organization |
| ACCDPPA | Approx. Coupled Cluster With Double Excitations Polarization Propagator Approxn. |
| SCIT | Standing Committee On Information Technologies |
| RITD | Resonant Interband Tunneling Diode |
| MS-RHFR | Momentum-space Restricted Hartree-Fock-Roothaan |
| MCSCO | Multiconfiguration Self-consistent Orbital |
| MITE | Miniature Inverted-repeat Transposable Element |
| SC-FLAPW | Self-consistent Full-potential Linearized-augmented-plane-wave |
| PCD | Polycrystalline Diamond |
| MMP | Monitoring Master Plan (of North Sea Task Force) |