Macadamize (?), v. t. [imp. & p. p. Macadamized (?); p. pr. & vb. n. Macadamizing.] [From John Loudon McAdam, who introduced the process into Great Britain in 1816.] To cover, as a road, or street, parking lot, playground, or other flat area, with macadam, so as to form a smooth, hard, convex surface.Syn. -- tarmac.[1913 Webster]