tarmacadam

noun tar·mac·ad·am \ ˌtär-mə-ˈka-dəm \

Definition of tarmacadam

1 : a pavement constructed by spraying or pouring a tar binder over layers of crushed stone and then rolling
2 : a material of tar and aggregates mixed in a plant and shaped on the roadway

First Known Use of tarmacadam

1882

in the meaning defined at sense 1

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