bigender vs non-binary

bigender

adj
  • Having a tendency to move between feminine and masculine gender-typed behaviour depending on context. 

  • Having two genders simultaneously: both male and female. 

non-binary

adj
  • Having or pertaining to a gender identity not represented by the gender binary; not exclusively male or female; genderqueer. 

  • Not binary. 

noun
  • A non-binary (genderqueer) person. 

  • Something which is not a binary; a computer file that is not readable text. 

How often have the words bigender and non-binary occurred in a corpus of books? (source: Google Ngram Viewer )