| Acronym | Meaning |
| TMP | Thermomechanical Pulping |
| ECF | Elemental Chlorine Free [as In Nonchlorine Bleaching] |
| STHF | Single-term Hartree-Fock |
| MRSD-CI | Multireference Single And Double Excitation CI |
| JSGA | Japanese Spaceguard Association |
| ACE | Atmospheric Collection Equipment |
| SOPPA | Second-order Polarization Propagator Approxn. |
| RBM | Rigid Band Model |
| NADC | National Animal Disease Center |
| PTP | Protein Tyrosine Phosphatase |