| Acronym | Meaning |
| UHT | Ultra High Temperature |
| HTTP | Hypertext Transfer Protocol |
| WVTR | Water Vapor Transmission Rate |
| RAA | Rigid-atom Approxn. (in Electronic Structure Calcns.) |
| ROBK1 | Relativistic First-order Oppenheimer-Brinkman-Kramers |
| PGF | Pseudo Green Function |
| IPC | International Patent Classification |
| TNAA | Thermal Neutron Activation Analysis |
| TMC | Titanium Matrix Composite |
| IU | International Unit |