| Acronym | Meaning |
| GSCF | Generalized Self-consistent Field |
| CAI | Calcium Aluminum Inclusion |
| SNARL | Suggested No-adverse Response Level |
| GMAV | Genus Mean Acute Value |
| GRWA | Generalized Rotating-wave Approxn. (in Energy Level Calcns.) |
| CRDA | Cooperative Research And Development Agreement |
| TIP | Total Isomerization Process |
| CRT | Continuously Regeneration Trap |
| IDDB | Investigational Drugs Database |
| PIAMS | Photoionization Aerosol Mass Spectrometry |