单词 | mineral coal |
释义 | mineral coal/ˈmɪn(ə)rəl ˌkəʊl/ /ˈmɪn(ə)r(ə)l ˌkəʊl/Now chiefly historical noun Native or mined coal, as distinct from charcoal. Also: †a variety of coal in which there are no traces of plant structure (obsolete ). OriginLate 18th century; earliest use found in Thomas Jefferson (1743–1826), revolutionary politician and president of the United States of America. From mineral + coal. |
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