Meanings
Synonyms & antonyms
nounSynonym of protium (“"the usual isotope of hydrogen"”).
Origin
So named because it is the usual isotope of hydrogen, having one nucleon (a single proton and no neutrons).
Full word history & related roots →Cite this entry
normal hydrogen. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/normal%20hydrogen
“normal hydrogen.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/normal%20hydrogen. Accessed November 3, 2026.
WatkinsX Dictionary, s.v. “normal hydrogen,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/normal%20hydrogen.
Source: normal hydrogen on Wiktionary, CC BY-SA 4.0.