wacke

English

Etymology

From Middle High German wacke (“boulder”), from Old High German waggo or wacko, yielding German Wacke, probably cognate with Old High German wegan (“to move”).

Noun

wacke (countable and uncountable, plural wackes)

1. (geology) A soft, earthy, dark-coloured rock or clay derived from the alteration of basalt.

Synonyms

• wacky

Related terms

• graywacke, greywacke
• wackenitic