| Acronym | Meaning |
| UNESCO | United Nations Educational |
| EBA | Exponentiated Born Approximation |
| END | Electron Nuclear Dynamics (method In Atomic And Molecular Scattering Calcns.) |
| ALPS | Airborne Laser Polarization Sensor |
| ACCD | Approximate Double Substitution Coupled Cluster Method |
| CDDIS | Crustal Dynamics Data Information System |
| THTR | Thorium High Temperature Reactor |
| DOBAMBC | P-(n-(decyloxybenzylidene)-p-amino-(2-methylbutyl) Cinnamate |
| GTSSP | Global Temperature And Salinity Pilot Program |
| FINDS | Facilities Index Data System |