/ Dictionary / Index B bipolar: Meaning and Definition of Find definitions for: bi•po•lar Pronunciation: (bī-pō'lur), [key] — adj. having two poles, as the earth. of, pertaining to, or found at both polar regions. characterized by opposite extremes, as two conflicting political philosophies. of or pertaining to a transistor that uses both positive and negative charge carriers. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: bipolar (Thesaurus) bipod bipolar disorder Related Content Daily Word Quiz: meritocracy Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language