| Acronym | Meaning |
| HMC | Human Mast Cell |
| CDT | Critical Dissolution Time (synthetic Fiber And Polymer Property) |
| NVFEL | National Vehicle And Fuel Emissions Laboratory |
| ATE | Automatic Test Equipment |
| IGCC | Integrated Gasification Combined Cycles (electric Power Generation Technology) |
| EIT | EUV (extreme Ultraviolet) Imaging Telescope |
| ART | Absolute Rate Theory |
| CCTM | Coupled-channel Transition Matrix (in Atom-surface Scattering) |
| RSMST | Real-space Multiple-scattering Theory (in Electronic Structure) |
| APWA | American Public Works Association |