Definitions
coat with a layer of copper
Word origin
The noun is probably derived from cop (“(informal, dated) to arrest or capture (someone)”) + -er (suffix forming agent nouns), although cop is attested slightly later.
Used in a sentence
“Men talke much […] of the Philoſophers ſtone, that it turneth copper into gold; […]”
“Through the clear smooth water her copper shone brightly; […]”
“In the Siberian Traps crustal contamination of mantle magmas is seen to cause the segregation of large volumes of sulfide, which host giant deposits of nickel, copper, and platinum group metals in associated intrusions.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer2 curated clues
01“Metal used in pennies”6 letters
02“Reddish metal”6 letters
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