| Acronym | Meaning |
| ENAA | Epithermal Neutron Activation Analysis |
| CONTOUR | Comet Nucleus Tour |
| CORMIX | Cornell Mixing Zone Model |
| HIAA | Hydroxyindoleacetic Acid |
| BDA | Biotinylated Dextran Amine |
| JPO | Japanese Patent Office |
| FPP | Fertilization Promoting Peptide |
| EMF | Electromagnetic Force |
| PSRG | Position-space Renormalization Group (for D.-of-states Calcns.) |
| MLSS | Mixed Liquor Suspended Solids |