| Acronym | Meaning |
| PHDD | Polyhalogenated Dibenzodioxin(s) |
| MIAME | Minimum Information About A Microarray Experiment |
| ARROW | Anti-resonant Reflecting Optical Waveguide |
| HFET | Highway Fuel Economy Test |
| TNLCD | Twisted Nematic Liquid Crystal Display |
| NPS | Nonpoint Source |
| TTSS | Tropospheric Trace Species Sounder |
| SALCCSD | Spin-adapted Linear Coupled-cluster (with) Single And Double Excitations) |
| LCGO | Linear Combination Of Group Orbitals |
| SDWA | Safe Drinking Water Act |