| Acronym | Meaning |
| FSSW | Friction Super Stir Welding |
| AOES | Actinometry Optical Emission Spectroscopy |
| FCC | Fluidized Catalytic Cracking |
| SCCM | Self-consistent Cell Model |
| DDT | Dichlorodiphenyltrichloroethane |
| SMA | Shape Memory Alloy |
| ERFEN | Estudio Regional Del Fenomeno El Nino |
| STOVL | Short Take-Off And Vertical Landing |
| RI | Refractive Index |
| SWAT | Soil Water Assessment Tool |