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blue metal. In DICTIOUS you will not only get to know all the dictionary meanings for the word
blue metal, but we will also tell you about its etymology, its characteristics and you will know how to say
blue metal in singular and plural. Everything you need to know about the word
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English
Noun
blue metal (uncountable)
- (Australia, New Zealand) Hard dark stone crushed into small pieces used in surfacing roads, for ballast in railway tracks, etc; gravel; road metal.