cornstone

C3O1R1N1S1T1O1N1E1

noun

A kind of marly siliceous rock.

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Meanings

nouncornstone (countable and uncountable, plural cornstones)

plural cornstones

  1. countableuncountablechemistryA kind of marly siliceous rock.

Origin

From corn + stone.

Full word history & related roots →
Cite this entry
APA

cornstone. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/cornstone

MLA

“cornstone.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/cornstone. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “cornstone,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/cornstone.

Source: cornstone on Wiktionary, CC BY-SA 4.0.