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canaigre

American  
[kuh-nahy-gree] / kəˈnaɪ gri /

noun

  1. a plant, Rumex hymenosepalus, of the buckwheat family, found from Oklahoma to California, having clustered, tuberous roots that yield tannin.


canaigre British  
/ kəˈnaɪɡə /

noun

  1. a dock, Rumex hymenosepalus, of the southern US, the root of which yields a substance used in tanning

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of canaigre

1875–80, < Mexican Spanish