| Acronym | Meaning |
| ECCF | Exchange Correlated Crystal Field |
| MRINDO/S | Modified Rydberg Intermediate Neglect Of Differential Overlap/spectral (or Screening) |
| INTECOL | The International Association Of Ecology |
| MCPP | (+/-)-2-(4-chloro-2-methylphenoxy)propionic Acid (REG: 7085190) |
| SMES | Superconductive Magnetic Energy Storage |
| LOIS | Land-Ocean Interaction Study |
| STORMS | Nevada Study And Tests Of The Release Of Mercury From Soils |
| SCM | Subsurface Chlorophyll Maximum |
| PMR | Proportional Mortality Ratio |
| VLG | Varying Localized Geminal |