copper (Cu); bronze (medal)
shakudo; gold-copper alloy, often with a blue patina
weight (for scales); counterweight
bronze color; copper color
bell-shaped bronze vessel of Yayoi period
copperplate engraving; etching
copper plate; copperplate
chain with a weight at the end (usu. a weapon)
nickel and copper alloy; cupronickel; nickel coin
gold, silver and bronze (medals)
bronze prize; bronze award; bronze medal; third-place prize
Wadō era (708.1.11-715.9.2)
bronze medal; copper medal
copper oxide (i.e. cuprous oxide, cupric oxide)
copper pyrites; fool's gold; chalcopyrite
copper working; copper fabrication
bronze hoko; bronze halberd; bronze spearhead
bronze wedding (anniversary); 7th wedding anniversary
cupronickel (alloy of approximately 80% copper and 20% nickel)
copper foil (used in copper plating); copper layer (of printed circuits)
cuprous ammoniacal process
cuprite; red copper; red copper ore
vitreous copper; copper glance; chalcocite
cupriferous; containing copper
copper arrowhead (Yayoi and Kofun periods)
cupreous chafer (scarabaeid beetle, Anomala cuprea)