| Acronym | Meaning |
| PTV | Programmed Temp. Vaporizing |
| NLTE | Non-local Thermodynamic Equilibrium |
| LOSIS | Law Of The Sea Information System |
| MFVT | Mixed Flow Vectored Thrust |
| QBO | Quasi-biennial Oscillation (atm.) |
| IMAGE | Integrated Molecular Analysis Of Gene Expression |
| SIA | Semiconductor Industry Association |
| CVSEH | Correlated Valence Shell Effective Hamiltonian |
| PBIRG | Pharmaceutical Business Intelligence And Research Gro |
| RTM | Resin-transfer Molding |