Meaning | 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. |
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Synonyms | H, atomic number 1 |
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Narrower | tritium | A radioactive isotope of hydrogen |
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Broader | chemical element, element | Any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter |
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gas | A fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely |
Substance of | water, H2O | binary compound that occurs at room temperature as a clear colorless odorless tasteless liquid / liquid |
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Spanish | hidrógeno, número atómico 1 |
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Catalan | hidrogen, número atòmic 1 |
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Verbs | hydrogenate | combine or treat with or expose to hydrogen |
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