| Acronym | Meaning |
| RHB | Reheat Blow Molding |
| TDRH | Time-dependent Rotated Hartree (theory) |
| OWEC | Office Of Wastewater Enforcement And Compliance |
| QCD | Quantum Chromodynamics |
| PENIS | Proton-enhanced Nuclear Induction Spectroscopy |
| EVB | Effective Valence Bond (hamiltonian) |
| BEAR | Business And Environmentalists In An Alliance For Recycling |
| TARP | Technical Assistance Response Program |
| DHBT | Double Heterojunction Bipolar Transistor |
| APS | Aerodynamic Particle Sizer |