Where does this definition of free hydrogen come from?
This entry for free hydrogen is sourced from GetWord Corpus, one of the dictionaries and corpora merged into Lughet.
Does free hydrogen appear elsewhere on Lughet?
Yes — free hydrogen appears under other sources or language pairs in Lughet's collection. See the list below.
What is Lughet?
Lughet is a free trilingual dictionary covering nearly five million entries across Uyghur, Chinese, and English, drawn from more than ten source dictionaries and corpora.
