Gun metal

noun

Definitions

Noun
  1. 1
    Alternative form of gunmetal. alt-of, alternative, countable, uncountable

    "The pump [of the steam fire-engine], being at the forward end, was made of gun metal and was double acting, having eight brass suction-valves, four on each side, and four discharge valves, opening into the air vessels, to which a double discharge valve, having one opening on the inside and two on the outside, was attached for the purpose of using two lines of hose."

Etymology

From gun + metal.

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