gray hydrogen

noun

hydrogen generated from hydrocarbon sources without attempting to capture and eliminate the waste carbon pollution

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Meanings

noungray hydrogen (uncountable)

alternative grey hydrogen

  1. uncountablehydrogen generated from hydrocarbon sources without attempting to capture and eliminate the waste carbon pollution

Synonyms & antonyms

Also see
brown ammonia

Origin

From the color of smoke.

Full word history & related roots →
Cite this entry
APA

gray hydrogen. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/gray%20hydrogen

MLA

“gray hydrogen.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/gray%20hydrogen. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “gray hydrogen,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/gray%20hydrogen.

Source: gray hydrogen on Wiktionary, CC BY-SA 4.0.