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What does it mean to be “fluent” in a language?
In 2011, the Arizona Board of Education considered if teachers who speak with an accent are fluent in English. (Read the full story here.) We have all heard how differently people in London, New York, or Baton Rouge speak English, but are those different speakers still fluent in English? Where does accent stop and fluency begin? Fluency is defined as being able to speak and …
the brownish-red oxide of iron produced by heating ferrous sulfate: used chiefly as a pigment in paints and theatrical rouge, and as a polishing agent.
Origin of colcothar
1595–1605; < Medieval Latin < Old Spanish colcotar, Spanish Arabic qulquṭār, perhaps < Greek chálkanthos copper sulfate solution
Also called jewelers' rouge.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
a finely powdered form of ferric oxide produced by heating ferric sulphate and used as a pigment and as jewellers' rougeAlso called: crocus
Word Origin for colcothar
C17: from French colcotar, from Spanish colcótar, from Arabic dialect qulqutār
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