|
|
| hy·dro·gen [ hdrəjən ] |
noun |
|
| Definition: |
| |
reactive gaseous element: a highly reactive colorless gas, the lightest element and the most abundant in the universe. Source: water, most organic compounds. Use: industrial processes, production of ammonia, reduction of metal ores to metals. Symbol H
|
| [Late 18th century. < French hydrogène< Greek hudōr "water" + French -gène (see -gen)] |
|