Dictionary![]() ![]() ox•y•hy•dro•genPronunciation: (ok"si-hī'dru-jun), [key] —adj. pertaining to or involving a mixture of oxygen and hydrogen. —n. a mixture of oxygen and hydrogen, used in a blowtorch for welding steel plates or the like. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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