Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun crottal

1 sense of crottal

Sense 1
crottle, crottal, crotal -- (any of several lichens of the genus Parmelia from which reddish brown or purple dyes are made)
       => lichen -- (any thallophytic plant of the division Lichenes; occur as crusty patches or bushy growths on tree trunks or rocks or bare ground etc.)