| Acronym | Meaning |
| MPI | Mass Psychogenic Illness (in Indoor Air Pollution) |
| CIH | Certified Industrial Hygienist |
| BAHC | Biospheric Aspects Of The Hydrological Cycle |
| APS | Appearance Potential Spectroscopy |
| QFDFT | Quantum-fluid Density-functional Theory |
| ASHI | American Society Of Histocompatibility And Immunogenetics |
| HPV | Human Papillomavirus |
| BWCC | Brillouin-Wigner Coupled-cluster (theory) |
| MCGR | Monte-Carlo Renormalization Group |
| CTLA | Cytotoxic T Lymphocyte Antigen |