Dictionary

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

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