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hydrogen (1 synonym found)
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Definition of hydrogen:
(n) :
the lightest chemical element (symbol H) with an atomic number of 1 and atomic weight of 1.00794; molecular hydrogen (H2), a colourless, odourless and flammable gas at room temperature
Definition of hydrogen:
(n) :
the lightest chemical element (symbol H) with an atomic number of 1 and atomic weight of 1.00794; molecular hydrogen (H2), a colourless, odourless and flammable gas at room temperature