Meanings
noun
- alternativeAlternative form of roche alum.
Origin
Probably by confusion with French roche (“rock”).
Full word history & related roots →Cite this entry
APA
rock alum. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/rock%20alum
MLA
“rock alum.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/rock%20alum. Accessed November 5, 2026.
Chicago
WatkinsX Dictionary, s.v. “rock alum,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/rock%20alum.
Source: rock alum on Wiktionary, CC BY-SA 4.0.