/ Dictionary / Index B bilineate: Meaning and Definition of Find definitions for: bi•lin•e•ate Pronunciation: (bī-lin'ē-it", -āt"), [key] — adj. Zool. marked with two usually parallel lines. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. bilinear transformation bilingual 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