Meanings
- uncountablenatural sciencesA state of hydrogen that is poorly electrically conductive (much less conductive than metallic hydrogen).
However, the rates of dark hydrogen production were relatively low.
2013, Tokio Ohta, Solar-Hydrogen Energy Systems, →ISBN2 more examples
One particular species of these candidates seems to be not dark at all: so-called dark hydrogen masses located in the optical Galactic disk.
2000, F. Combes, G. Pineau des Forets, Molecular Hydrogen in Space, →ISBN, page 48The over-unity energy production could be due to a gradual transformation of hydrogen to dark hydrogen in the same state as in water.
2007, Florentin Smarandache, V. Christianto, Hadron models and related New Energy issues, →ISBN, page 96
Origin
From being a state of matter which neither transmits nor reflects visible light, but can transmit infrared.
Full word history & related roots →Cite this entry
dark hydrogen. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/dark%20hydrogen
“dark hydrogen.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/dark%20hydrogen. Accessed November 4, 2026.
WatkinsX Dictionary, s.v. “dark hydrogen,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/dark%20hydrogen.
Source: dark hydrogen on Wiktionary, CC BY-SA 4.0.