| Acronym | Meaning |
| RHT | Restricted Hueckel Method |
| ANADA | Abbreviated New Animal Drug Application |
| UNECE | United Nations Economic Commission For Europe |
| CCAP | Climate Change Action Plan |
| PGP | Previous Glacial Period (glacial Maximum Of O18 Stage 6; Predates The LGM) |
| CCFL | Countercurrent Flow Limitation |
| TFR | Thin Film Resonator |
| Y-STR | Y Chromosome Short Tandem Repeat |
| DHP | Diheptyl Phthalate |
| HPCIC | High-performance Chelation Ion Chromatography |