copper

Definition

A reddish-brown metal, symbol Cu, and atomic number 29.

Etymology

Inherited from Middle English coper, from Old English coper, copor (“copper”), from Late Latin cuprum (“copper”), contraction of Latin aes Cyprium (literally “Cyprian brass”), from Ancient Greek Κύπρος (Kúpros, “Cyprus”). Doublet of kobo. Cognate with Dutch koper (“copper”), German Kupfer (“copper”), Icelandic kopar (“copper”).

Example Sentences

• "Trump’s July 8 announcement of a 50% tariff on copper imports beginning August 1 sent prices surging 13% in one day, up to a record high of $5.69 per pound."
• "Coppers are generally good for a year, if the battery is carefully attended […]"
• "Some coppers come already tinned. I didn't buy mine, so they surely were not tinned."

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