Bituminate \Bi*tu"mi*nate\ (b[i^]*t[=u]"m[i^]*n[=a]t), v. t. [imp. & p. p. {Bituminated}; p. pr. & vb. n. {Bituminating}.] [L. bituminatus, p. p. of bituminare to bituminate. See {Bitumen}.] To treat or impregnate with bitumen; to cement with bitumen. "Bituminated walls of Babylon." --Feltham. [1913 Webster]