bisexual person vs intersex

bisexual person

noun
  • a person attracted to persons of either gender 

intersex

noun
  • An individual with any of these conditions. 

  • The condition of being intersex; intersexuality. 

verb
  • To make intersex. 

adj
  • Having any of a variety of inherent conditions (in a species with distinct sexes) in which one's sex characteristics differ from those of a typical male and female; for example, having sex characteristics relating to both male and female sexes. 

  • A person who can get pregnant and also impregnate someone else. 

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