单词 | colcothar |
释义 | Word Frequency colcothar(ˈkɒlkəˌθɑː) noun a finely powdered form of ferric oxide produced by heating ferric sulphate and used as a pigment and as jewellers'rouge Also called: crocusWord origin C17: from French colcotar, from Spanish colcótar, from Arabic dialect qulqutār |
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