hélonium
French, noun\e.lo.njɔm\
hélonium is spelled H-É-L-O-N-I-U-M (8 letters). Hélonium is a French masculine noun meaning “helonium” (English Wiktionary, September 2026). The French Wiktionary (Wiktionnaire) defines it as “Cation hydrure d’hélium, ion diatomique de formule chimique HeH⁺”.
What does hélonium mean in English?
noun
- 1
masculinehelonium
Source: English Wiktionary, French section, dump of September 2, 2026 (CC BY-SA 4.0).
How French dictionaries define it
noun: 1. Cation hydrure d’hélium, ion diatomique de formule chimique HeH⁺.
The definition in the French Wiktionary (Wiktionnaire), in French.
Source: French Wiktionary (Wiktionnaire), dump of September 1, 2026 (CC BY-SA 4.0), through kaikki.org.
Forms of hélonium
- héloniums plural
Source: English Wiktionary and French Wiktionary (Wiktionnaire) (dumps of September 2, 2026 and September 1, 2026).
How do you pronounce hélonium?
- \e.lo.njɔm\
Sources: English Wiktionary, French Wiktionary (Wiktionnaire) (dumps of September 2, 2026 and September 1, 2026); recordings from Wikimedia Commons.