| Subject | English | Spanish |
| energ.ind. | energy source material | fuente energética |
| energ.ind. | energy source material | fuentes de energía |
| environ. | energy source material Sources from which energy can be obtained to provide heat, light, and power. Energy resources, including fossil and nuclear fuels as well as solar, water, tidal and geothermal energy, may be captured or recovered and converted into other energy forms for a variety of household, commercial, transportation, and industrial applications | material de origen energético |
| environ. | energy source material | material de origen energético |
| energ.ind. | energy source material | fuente de energía |
| tech. | source material | materia prima |
| gen. | source material | material básico |