Bipolar
[baɪ'pəʊlə] or [,baɪ'polɚ]
Definition
(adj.) having two poles .
(adj.) of, pertaining to, or occurring in both polar regions; 'the bipolar distribution of certain species' .
(adj.) of or relating to manic depressive illness .
Editor: Upton--From WordNet
Definition
(a.) Doubly polar; having two poles; as, a bipolar cell or corpuscle.
Checker: Reginald