| Acronym | Meaning |
| NLLAP | National Lead Laboratory Accreditation Program |
| CCQC | Center For Computational Quantum Chemistry |
| ODCPA | Off-diagonal (disorder) Coherent-potential Approxn. |
| IISRP | International Institute Of Synthetic Rubber Producers |
| VU-CCSD/R | Valence Universal-coupled Cluster (with) Single (and) Double (excitations) (r = Radial Components Of The Cluster Amplitudes) |
| CJII | Canadian Joint Implementation Initiative [with Regard To Greenhouse Gas Control] |
| NEWS | National Surface Water Survey (USEPA) |
| XRPD | X-ray Powder Diffraction |
| LCHAO | Linear Combination Of Hybrid Atomic Orbitals |
| BVC | British Veterinary Codex |