| Acronym | Meaning |
| OMNMHCE | Organic Material Nonmethane Hydrocarbon Equivalent |
| CTPGF | Closed Time Path Green Function (in Many-body Theory) |
| MAST | Marine Science And Technology Programme |
| CELIA | Competitive Enzyme-Linked Immunoassay |
| APN | Aminopeptidase N |
| IRTF | NASA Infrared Telescope Facility |
| SXRFMA | Synchrotron X-ray-fluorescence Microanalysis |
| BACM | Best Available Control Measure |
| IACS | International Annealed Copper Standard |
| ALCA | American Leather Chemists' Association |