| Acronym | Meaning |
| MRLV | Mobile Raman Lidar Van |
| IRE | Internal Reflection Element |
| CETP | Channel Equiv. Of A Theor. Plate |
| BAGI | Backscatter Absorption Gas Imaging |
| TO | Topological Orbital (in Graph Theory Of Molecules) |
| RSK | Ribosomal S6 Kinase |
| AHCPR | Agency For Health Care Policy And Research |
| MMS | Merged Markush Service |
| RAS | Renin-angiotensin System |
| ANPRM | Advance Notice Of Proposed Rulemaking |