blue metal

noun

Hard dark stone crushed into small pieces used in surfacing roads, for ballast in railway tracks, etc; gravel; road metal.

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Meanings

nounblue metal (uncountable)
  1. AustraliaNew ZealanduncountableHard dark stone crushed into small pieces used in surfacing roads, for ballast in railway tracks, etc; gravel; road metal.
Cite this entry
APA

blue metal. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/blue%20metal

MLA

“blue metal.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/blue%20metal. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “blue metal,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/blue%20metal.

Source: blue metal on Wiktionary, CC BY-SA 4.0.