| Acronym | Meaning |
| PINN | Proposed International Nonproprietary Names (for Drugs) |
| CETP | Cholesteryl Ester Transfer Protein |
| APF | Acidulated Phosphate Fluoride |
| BIIR | Brominated Isobutene-isoprene Rubber |
| NICMOS | Near-IR Camera And Multiobject Spectrometer |
| HSC | High Conversion Soaker (cracking) [petroleum Viscosity-breaking] |
| GAMOT | Global Acoustic Mapping Of Ocean Climate |
| XGRS | X-ray/gamma-ray Spectrometer |
| CSITE | Consortium For Research On Enhancing Carbon Sequestration In Terrestrial Ecosystems |
| ERMS | Emergency Radiation Monitoring System |