crottal
1. [ noun ] (botany) any of several lichens of the genus Parmelia from which reddish brown or purple dyes are made
Synonyms: crotal crottle
Related terms: lichen Parmelia
Similar spelling:   crotal
  Crotalus
  crottle
  Crotalidae
  crotalaria
  Crittle
  credal
  Critelli
  creedal