crushed rock, broken stone, etc, used to construct a road
road metal in American English
broken stones, cinders, etc. used in making roads, ballasting roadbeds, etc.
road metal in American English
noun
Brit
broken stone, cinders, etc., used for making roads
Also called: metal
Word origin
[1810–20]This word is first recorded in the period 1810–20. Other words that entered Englishat around the same time include: keyboard, rationalize, realism, triangulation, voodoo