crottle

A noun referring to any of several lichens of the genus Parmelia, used to produce reddish brown or purple dyes.

• 🇫🇷Nom désignant l'un des divers lichens du genre Parmelia, utilisés pour produire des teintures brun rougeâtre ou violettes.

1. Dye-producing lichen C2 formal british

   Any of several lichens, especially from the genus Parmelia, used to produce reddish-brown or purple dyes.

   • The ancient Scots used crottle to dye their wool.
   • Crottle gives a distinctive reddish-brown color to tartan cloth.
   • She gathered crottle from the rocks to make natural dye.

   🇫🇷Lichens tinctoriaux du genre Parmelia

   Synonymes: crotalcrottal