Meanings
nountrihelium (uncountable)
- uncountableA molecule composed of three helium atoms, or matter composed of such molecules. Symbol: He₃.
Synonyms: helium trimer, triatomic helium
Synonyms & antonyms
nounA molecule composed of three helium atoms, or matter composed of such molecules. Symbol: He₃.
Similar
helium trimertriatomic helium
Cite this entry
APA
trihelium. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/trihelium
MLA
“trihelium.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/trihelium. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “trihelium,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/trihelium.
Source: trihelium on Wiktionary, CC BY-SA 4.0.