| Acronym | Meaning |
| SCP | Single-cell Protein |
| NACCHO | National Association Of County And City Health Officials |
| LTH | Linearized Time-dependent Hartree (approxn. |
| ACI | Alloy Casting Institute |
| NSPS | New Source Performance Standards |
| SCI | Single Excitation Configuration Interaction |
| FAS | Federation Of American Scientists |
| SCRP | Spin Correlated Radical Pairs |
| BTCC | Bladder Transitional Cell Carcinomapar |
| LISA | Lander For Ion-selective Analysis |