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hydrogen bomb
hydrogen bond
hydrogen bromide
hydrogen carbonate
hydrogen chloride
hydrogen cyanide
hydrogen embrittlement
hydrogen fluoride
hydrogen iodide
hydrogen ion
hydrogen peroxide
hydrogen sulfate
hydrogen sulfide
hydrogen sulfite
hydrogen tartrate
hydrogenase
hydrogenate
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hydrogen iodide
hy·dro·gen i·o·dide


noun 
Definition:
 
colorless gas: a colorless poisonous gas. Source: reaction of hydrogen and iodine in the presence of a catalyst, usually platinum. HI
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