Meaning ofgunmetalin English

Noun

1. a dark grey or bluish-grey colour
   The designer chose a gunmetal colour for the car's exterior.
2. an alloy of copper, tin, and zinc
   The engineer worked with gunmetal alloy to create a durable machine part.
3. a historical bronze for cannons; metalwork
   The historian studied the use of gunmetal in ancient cannon production.