D defs.my
Entry 1 sense Webster, 1913

Bipolar

/bīp-ōl'-ẽr/ · Bi·po·lar · IPA /baɪˈpoʊ.lɚ/
01 a. Doubly polar; having two poles; as, a bipolar cell or corpuscle.
  1. 1.
    Doubly polar; having two poles; as, a bipolar cell or corpuscle.