| Acronym | Meaning |
| WEP | Weak Equivalence Principle |
| APM | Airborne Particulate Matter |
| STEAM | Stratosphere-Troposphere Exchange And Climate Monitor |
| ISA | Ionic Strength Adjuster |
| DEXA | Dual Energy X-ray Absorptiometry |
| SELEX | Systematic Evolution Of Ligands By Exponential Enrichment |
| CNWRA | Center For Nuclear Waste Regulatory Analyses |
| PCMI | Pellet Cladding Mechanical Interaction |
| AVS | Acid Volatile Sulfide |
| FERST | Facility For Environmental Remote Sensing And Test |