HyperDic: hydrogen

English > 1 sense of the word hydrogen:
NOUNsubstancehydrogen, H, atomic number 1a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas
hydrogen > pronunciation
Soundshhay'drahjhahn
RhymesAachen ... Zukerman: 2572 rhymes with ahn...
English > hydrogen: 1 sense > noun 1, substance
MeaningA 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.
SynonymsH, atomic number 1
NarrowertritiumA radioactive isotope of hydrogen
Broaderchemical element, elementAny 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
gasA fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely
Substance ofwater, H2Obinary compound that occurs at room temperature as a clear colorless odorless tasteless liquid / liquid
Spanishhidrógeno, número atómico 1
Catalanhidrogen, número atòmic 1
Verbshydrogenatecombine or treat with or expose to hydrogen

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