constipation vs segregation

constipation

noun
  • The act of crowding anything into a lesser space, or the state of being crowded or pressed together; condensation. 

  • A state of the bowels in which the evacuations are infrequent and difficult, or the intestines become filled with hardened faeces 

segregation

noun
  • The setting apart or separation of things or people, as a natural process, a manner of organizing people that may be voluntary or enforced by law. 

  • The separation of people (geographically, residentially, or in businesses, public transit, etc) into racial or other categories (e.g. religion, sex). 

  • The setting apart in Mendelian inheritance of alleles, such that each parent passes only one allele to its offspring. 

  • Separation from a mass, and gathering about centers or into cavities at hand through cohesive or adhesive attraction or the crystallizing process. 

  • The separation of a pair of chromatids or chromosomes during mitosis and meiosis 

  • The separation of people (geographically, residentially, or in businesses, public transit, etc) into various categories which occurs due to social forces (culture, etc). 

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