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coal tar

noun
🔊/ˈkəʊl tɑː(r)/
🔊/ˈkəʊl tɑːr/
[uncountable]
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  1. a thick black sticky substance produced when gas is made from coal（制作煤气时产生的）煤焦油，煤沥青
    • the powerful smell of coal tar soap煤焦油肥皂的强烈气味
    • a dye made from coal tar用煤焦油制成的染料