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Noun: macadam  mu'ka-dum
  1. Broken stone used in macadamized roadways
     
  2. A paved surface having compressed layers of broken rocks held together with tar
    - tarmacadam, tarmac

Derived forms: macadams

See also: macadamize

Type of: paved surface, pavement [Brit], paving, paving material, sidewalk [N. Amer]

Encyclopedia: Macadam Macadam, John