| Acronym | Meaning |
| HRAC | Herbicide Resistance Action Committee |
| DIGGER | Discrete Isolation From Gradient-governed Elimination Of Resonances |
| CMR | Colossal Magnetoresistance |
| NPR | Net Protein Retention |
| ACPQ | Approx. Coupled-pair (theory Cor. For Connected) Quadruply (excited Clusters) |
| SITE | Superfund Innovative Technology Evaluation |
| ALE | Atmospheric Lifetime Experiment |
| MAO | Modified Atomic Orbital |
| AAU | Amendment To Allege Use |
| NICS | Nucleus-independent Chemical Shifts |