unipolar

/ˌjunɪˈpoʊlər/
adjective
  1. Having or relating to a single pole or polarity, especially in electricity or magnetism.
    • A unipolar magnet has only one magnetic pole, unlike a typical bar magnet.
    • The device uses a unipolar electrical signal to control the motor's speed.
    • In unipolar transistors, current flows through only one type of charge carrier.
  2. Relating to or characterized by a single dominant force, influence, or aspect.
    • The Cold War era was bipolar, but some historians describe the 1990s as a unipolar moment for the United States.
    • A unipolar world order means one country holds most of the global power.
    • The company's unipolar focus on one product made it vulnerable to market changes.