氢
hydrogen; hydrogen gas
Meanings
2 senses · 10 examplesnoun
hydrogen (chemical element)
formalStandard scientific term for the chemical element hydrogen, used in academic and industrial contexts.
Hydrogen is the most abundant element in the universe.
Deuterium, an isotope of hydrogen, can be used for nuclear fusion research.
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Fuel cells generate electricity through the reaction of hydrogen and oxygen.
Industry commonly uses hydrogen to produce ammonia.
Water is composed of two elements: hydrogen and oxygen.
noun
hydrogen gas
Refers specifically to gaseous hydrogen in daily or industrial use scenarios.
This balloon is filled with hydrogen gas.
The laboratory is storing high-pressure hydrogen gas tanks.
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Hydrogen gas only produces water when burned, making it a clean energy source.
We need to purify hydrogen gas for the experiment.
Hydrogen balloons are very common during holiday celebrations.