Meanings
noungraywacke (countable and uncountable, plural graywackes)
plural graywackes
- alternativecountableuncountableAlternative form of greywacke.
Hundreds of projectile points and ceramic pieces from the island are stored in the State Museum in Albany, and archaeologists found human bones at a burial site from the early Woodland period at the back of the rock shelter, a 45-foot-long overhang of graywacke, a local sandstone.
2007 December 12, Anthony Depalma, “An Island in the Hudson, Plundered in Search of Indian Artifacts”, in New York Times
Cite this entry
APA
graywacke. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/graywacke
MLA
“graywacke.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/graywacke. Accessed November 3, 2026.
Chicago
WatkinsX Dictionary, s.v. “graywacke,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/graywacke.
Source: graywacke on Wiktionary, CC BY-SA 4.0.