road metal

noun British.
broken stone, cinders, etc., used for making roads.
Also called metal.


Origin:
1810–20

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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World English Dictionary
road metal
 
n
crushed rock, broken stone, etc, used to construct a road

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
00:10
Road metal is always a great word to know.
So is slumgullion. Does it mean:
an extraordinary or unusual thing, person, or event; an exceptional example or instance.
a stew of meat, vegetables, potatoes, etc.
Example sentences
The dense lava making up this plug is suitable for use as road metal, and
  currently is quarried for that purpose.
These gravels have been mined from hundreds of pits for fill, base material for
  paved roads, and road metal for secondary roads.
Limestone for building stone, quartzite for cement, and gravel for road metal
  have been mined in the area.
The occurrence area has been used as road metal for local road construction and
  is fairly well exposed.
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