/ Dictionary / Index B biphasic: Meaning and Definition of Find definitions for: bi•pha•sic Pronunciation: (bī-fā'zik), [key] — adj. having two phases. having a gametophytic and a sporophytic phase. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. bipetalous biphenyl 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