| Acronym | Meaning |
| HDC | Histidine Decarboxylase |
| DWS | Diffusing-wave Spectroscopy |
| CAP88-PC | Clean Air Act Assessment Package-1988 |
| ROBO | Rotating Bond Order (model In Potential Surface Calcns.) |
| CAMM | Cumulative Atomic Multipole Moment (for Mol. Charge Distributions) |
| SHED | Sealed Housing For Evaporative Detn. |
| ARXPS | Angular Resolved X-ray Photoelectron Spectroscopy |
| RMPP | Risk Management And Prevention Program |
| TEOM | Tapered Element Oscillating Microbalance |
| TDI | Toluene Diisocyanate [mixt. Of Isomers] |