| Acronym | Meaning |
| DDT | Dichlorodiphenyltrichloroethane |
| ACPTQ | Approx. Coupled Pair (theory Cor. For Connected) Triple And Quadruple Excitations |
| CNAEL | Committee On National Accreditation Of Environmental Laboratories (US EPA) |
| EMBR | Electromagnetic Brakepar |
| VICIM | Virtual Institute For Chemometrics And Industrial Metrology |
| IMSD | Information Management And Services Division |
| PSP | Pancreatic Stone Protein |
| IR | Isoprene Rubber |
| PSP | Paralytic Shellfish Poison |
| MPO | Metropolitan Planning Organization |