| Acronym | Meaning |
| ICEAS | Intermittent Cycle Extended Aeration System (activated Sludge) |
| QLUC | Quasimolecular Large Unit Cell (model For Electronic-structure Calcns. On Solids) |
| PICP | Carboxyterminal Propeptide Of Type I Procollagen |
| LNDO | Local Neglect Of Differential Overlap |
| CBR | Cosmic Background Radiation |
| IMPACT | Integrated Model Of Plumes And Atmosphere In Complex Terrain |
| JISC | Japanese Industrial Standards Committee |
| CCS | Contract Compliance Screening |
| IGARSS | International Geoscience And Remote Sensing Symposium |
| MPA | Multipurpose Additive |