crotal

(ˈkrɒtəl) or

crottle

(Textiles) Scot any of various lichens used in dyeing wool, esp for the manufacture of tweeds

[Gaelic crotal]

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

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Noun

crotal - any of several lichens of the genus Parmelia from which reddish brown or purple dyes are made

crottal, crottle

genus Parmelia, Parmelia - type genus of the Parmeliaceae; a large genus of chiefly alpine foliaceous lichens

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References in periodicals archive

Here, the continuing significance of sheep to the economy is portrayed, and the collective aspects of this work are apparent, from the gathering and shearing of the sheep by men, to the scraping of crotal, a lichen used for dyeing the wool, from rocks by children, and the waulking of the tweed by the women.

Reimagining sustainable cultures: constitutions, land and art

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