greywackes
greywackes is the plural of greywacke.
Meaning of greywacke
Noun
greywacke (countable and uncountable, plural greywackes)
- A hard dark sandstone with poorly sorted angular grains of quartz, feldspar, and small rock fragments in a compact, clay-fine matrix.
- Endless bleak, rounded hills composed of shales and ribs of tough ‘greywackes’ make up the Southern Uplands – all of such rocks were originally deposited under marine conditions.2004, Richard Fortey, The Earth, Folio Society, published 2011, page 177
Questions about greywackes
- What is greywackes the plural of?
- Greywackes is the plural of greywacke.
Words near greywackes in the dictionary
Source and license
Adapted from Wiktionary: greywackes (page history and authors); greywacke (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.
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Cite this entry: “greywackes.” Word.ws, https://word.ws/greywackes. Based on Wiktionary, CC BY-SA 4.0.
