hermaphroditism vs unisexual

hermaphroditism

noun
  • The state of having sexual organs of both the male and female sexes. 

unisexual

noun
  • An organism which is unisexual. 

adj
  • Of an organism, having characteristics of a single sex (as opposed to hermaphrodites). 

  • Of a species, having only a single (potentially hermaphroditic) sex (as opposed to bisexual). 

  • Unisex; suitable for any sex or gender. 

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