| Acronym | Meaning |
| RKHS | Reproducing Kernel Hilbert Space |
| HTSS | Hierarchical Tree Substructure Search |
| WILDCAT | Warning And Identification Lidar Detector For Countering Agent Threats |
| PET | Positron Emission Tomography |
| SMSA | Soft-core Mean Spherical Approxn. |
| TEC | Thermal Expansion Coefficient |
| RIOMETER | Relative Ionospheric Opacity Meter |
| NF | Nuclear Factor |
| ACM | Asbestos Containing Material(s) |
| SBP | Systolic Blood Pressure |