copper

1 copper /ˈkɑːpɚ/ noun
plural coppers
1 copper
/ˈkɑːpɚ/
noun
plural coppers
Britannica Dictionary definition of COPPER
1 
[noncount] : a reddish-brown metal that allows heat and electricity to pass through it easily — often used before another noun
2 
[noncount] : a reddish-brown color — usually used before another noun — see color picture on this page
3 
[count] chiefly British, informal : a copper or bronze coin that has little value

— coppery

/ˈkɑːpəri/ adjective [more coppery; most coppery]
2 copper /ˈkɑːpɚ/ noun
plural coppers
2 copper
/ˈkɑːpɚ/
noun
plural coppers
Britannica Dictionary definition of COPPER
[count] chiefly British, informal