| Acronym | Meaning |
| ICAME | International Commission On Application Of Moessbauer Effect |
| NCHS | National Center For Health Statistics |
| PTO | U.S. Patent And Trademark Office |
| UFL | Upper Flammable Limit |
| DAFNE | Double Annular Factory For Nice Experiments |
| NMVOC | Nonmethane Volatile Organic Compound |
| HKS | Hohenberg-Kohn-Sham (quantum Theory) |
| RSV | Respiratory Syncytial Virus |
| ACOIN | Australian Core Inventory |
| CBLM | Cluster-bethe-lattice Method (for Electronic-structure Calcns. On Crystals) |