from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Various lichens gathered for dyeing.
from the GNU version of the Collaborative International Dictionary of English
- n.pl. A name given to various lichens gathered for dyeing. See crottal.
from The Century Dictionary and Cyclopedia
- Dung; excrement, as of the sheep, goat, or hare.
- A name given in Scotland and in some parts of England to various species of lichens used in dyeing, distinguished as black, brown, white, etc., crottles.