bipolar vs duplex

bipolar

adj
  • Involving or having both extremes or poles at the same time. 

  • Relating to a bipole. 

  • Relating to or having bipolar disorder. 

  • Relating to both polar regions. 

  • Of or relating to an international system in which two states wield most of the cultural, economic, and political influence. 

noun
  • A bipolar cell. 

duplex

adj
  • Having horizons with contrasting textures. 

  • Having two floors 

  • Having two units, divisions, suites, apartments 

  • Bidirectional (in two directions). 

verb
  • To make a series of duplex throws. 

  • To make duplex. 

  • To make into a duplex. 

noun
  • A cancellation combining a numerical cancellation with a second mark showing time, date, and place of posting. 

  • A double-stranded polynucleotide. 

  • A dwelling unit with two floors 

  • A throwing motion where two balls are thrown with one hand at the same time. 

  • A system of multiple thrust faults bounded above and below by a roof thrust and floor thrust. 

  • A house made up of two dwelling units. 

How often have the words bipolar and duplex occurred in a corpus of books? (source: Google Ngram Viewer )