Definition of concrete noun from the Oxford Advanced American Dictionary

  

concrete

 noun
noun
NAmE//kɑnˈkrit//
 
, NAmE//ˈkɑŋkrit//
 
[uncountable]
 
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 building material that is made by mixing together cement, sand, small stones, and water a slab of concrete The pathway is formed from large pebbles set in concrete.
See the Oxford Advanced Learner's Dictionary entry: concrete