| Acronym | Meaning |
| QHA | Quasi-harmonic Approxn. (in Intramol. Vibrational Relaxation) |
| MC-INDO | Mol. Cluster-intermediate Neglect Of Differential Overlap |
| FATT | Fracture-appearance Transition Temperature |
| CCCTF | Core Conduction Cooldown Test Facility |
| DSIP | Delta-sleep Inducing Peptide |
| MPD | Maximum Permissible Dose |
| FP-LMTO | Full-potential Linear Combination Of Muffin-tin Orbitals |
| FRCA | Fire Retardant Chemicals Association |
| CHF | Congestive Heart Failure |
| NPOC | Nonpurgeable Organic Carbon |