Engelsk navneord: hydrogen | |||
| 1. | hydrogen (om masse el. substans) a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe | ||
| Termer med samme betydning (synonymer) | atomic number 1, H | ||
| Mindre specifikke termer | chemical element, element, gas | ||
| Mere specifikke termer | tritium | ||
| Vedrærer disse overordnede termer | H2O, water | ||