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Related to cudbear: orcein
A purplish-red dye derived from certain lichens.
[After Cuthbert Gordon, 18th-century Scottish chemist.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Dyeing) another name for orchil
[C18: whimsical alteration of Cuthbert, the Christian name of Dr Gordon, 18th-century Scot who patented the dye. See cuddy2]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
a violet coloring matter obtained from various lichens, esp. Lecanora tartarea.
[1760–70; coinage by Cuthbert Gordon, 18th-century Scottish chemist, based on his own name]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.