Meanings
nounwelsium (uncountable)
- obsoleteuncountableA supposed chemical element, now discredited.
Origin
Named after Carl Auer von Welsbach.
Full word history & related roots →Cite this entry
APA
welsium. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/welsium
MLA
“welsium.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/welsium. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “welsium,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/welsium.
Source: welsium on Wiktionary, CC BY-SA 4.0.