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hydrogen
hydrogen definition
hydro·gen (hī′drə jən)
noun
a flammable, colorless, odorless, gaseous chemical element, the lightest of all known substances: symbol, H; at. no., 1
Etymology: Fr hydrogène (see hydro- & -gen): coined (1787) by L. B. Guyton de Morveau (1737-1816), Fr chemist, in reference to the generation of water from the combustion of hydrogen
Related Forms:
- hydrogenous hy·drog′·enous (hī dräj′ə nəs) adjective
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