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Definition of bronze for English Language Learners. : 1  a metal that is made by combining copper and tin. : 2  something (such as a statue) that is made of bronze. : 3  a yellowish-brown color.
Bronze is an alloy that helps make copper more useful. Copper on its own is highly malleable, resistant to corrosion and thermal, but it is also very soft. Mixing it with tin makes it much more durable and also improves its malleability and its resistance to corrosion. The levels of copper and tin in bronze vary.