| Acronym | Meaning |
| HCA | Hierarchical Cluster Analysis |
| CPCPI | Chemical Protective Clothing Performance Index |
| CIH | Certified Industrial Hygienist |
| FD | Field Desorption |
| DRPA | Direct Random Phase Approximation |
| CESE | Complex Eigenvalue Shroedinger Equation |
| VLF | Very Low Frequency (radiowaves) |
| CCOI | Coupled-channel Optical (potential Method With Only The) Imaginary (part Of The Complex Polarization Potential) |
| DMFT | Dynamical Mean-field Theory |
| CENSA | Collaborative Electronic Notebook Systems Association |