| Acronym | Meaning |
| FOBT | Fecal Occult Blood Test |
| GBT | Generalized Brillouin Theorem |
| TCR | T Cell Receptor |
| TDCHF | Time-dependent Coupled Hartree-Fock |
| CCDPPA | Coupled-cluster With Double Excitation Polarization Propagator |
| CES | Committee On Earth Science (Office Science & Technology Policy) |
| CSAMT | Controlled-source Audio-magnetotelluric Technique |
| NCEH | National Center For Environmental Health |
| AIP | American Institute Of Physics |
| DAIRS | Differential Absorption Infrared Sensor |