| Acronym | Meaning |
| ESE | Electron Spin Echo |
| AACI | Association Of American Cancer Institutes |
| CANMET | Canada Centre For Mineral And Energy Technology |
| ISRA | Image-space Reconstruction Algorithm |
| WHO | World Health Organization |
| DWDM | Dense Wavelength Division Multiplexing |
| PFPE | Perfluorinated Polyether |
| CCCC | Complex-coordinate Coupled-channel (method In Calcns. On Rotational And Vibrational Predissocn.) |
| BMAW | Bare Metal Arc Welding |
| LC | Lethal Concentration |