/ Dictionary / Index B bituminize: Meaning and Definition of Find definitions for: bi•tu•mi•nize Pronunciation: (bī-t'mu-nīz", -ty'-, bi-), [key] — -nized, -niz•ing. to convert into or treat with bitumen. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: bituminize (Thesaurus) bitumen bituminous Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language