alum rock

noun

The mineral alunite.

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Meanings

alum rock1

nounalum rock (uncountable)
  1. uncountableThe mineral alunite.

Alum Rock2

proper noun
  1. A census-designated place in Santa Clara County, California, United States.
  2. A historical community in Clarion County, Pennsylvania, United States.
  3. An inner suburb and adjacent council ward in Birmingham, West Midlands, England (OS grid ref SP1287).
Cite this entry
APA

alum rock. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/alum%20rock

MLA

“alum rock.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/alum%20rock. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “alum rock,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/alum%20rock.

Source: alum rock on Wiktionary, CC BY-SA 4.0.