The Collaborative International Dictionary
Bituminate
Bituminate \Bi*tu"mi*nate\ (b[i^]*t[=u]"m[i^]*n[=a]t), v. t.
[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.
Wiktionary
bituminate
vb. (context transitive English) To treat or impregnate with bitumen.