| Acronym | Meaning |
| SCM | Self-consistent Multipolar (method In Metal Cluster Calcns.) |
| COSCI | Complete Open Shell Configuration Interaction |
| CEEM | Center For Energy And Environmental Management |
| FDTD | Finite-difference Time-domain |
| HLBR | Required Hydrophilic-lipophilic Balance (of Surfactants In Emulsifiers) |
| CESR | Cornell Electron Storage Ring |
| BCS | British Chemical Standard |
| AFEAS | Alternative Fluorocarbon Environmental Acceptability Study |
| VA-LUMO | Vibrationally Active LUMO |
| MEG4 | Multiexponentially Generated 4 (wave Functions) |