orchil definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
- any of a number of lichens (genera Roccella, Dendrographa, and Lecanora) yielding purple dyes
- any of these, including litmus
orchil definition by American Heritage Dictionary
- Any of several lichens, chiefly of the genera Roccella and Lecanora, from which a dye is obtained.
- The violet dyestuff obtained from any of these organisms.
Origin: Middle English orchell, ultimately from Old Catalan orxella, perhaps of Mozarabic origin.