The Collaborative International Dictionary
Bituminizing
Bituminize \Bi*tu"mi*nize\, v. t. [imp. & p. p. Bituminized; p. pr. & vb. n. Bituminizing.] [Cf. F. bituminiser.] To prepare, treat, impregnate, or coat with bitumen.
Wiktionary
bituminizing
vb. (present participle of bituminize English)