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colcothar
[ kol-kuh-ther ]
/ ˈkɒl kə θər /
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noun Chemistry.
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.
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Also called jewelers' rouge.
Origin of colcothar
1595–1605; <Medieval Latin <Old Spanish colcotar,Spanish Arabic qulquṭār, perhaps <Greek chálkanthos copper sulfate solution
Words nearby colcothar
colcannon, Colchester, colchicine, colchicum, Colchis, colcothar, cold, cold-blooded, cold-blooded animals, cold brew, cold call
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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use colcothar in a sentence
British Dictionary definitions for colcothar
colcothar
/ (ˈkɒlkəˌθɑː) /
noun
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
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