attachment vs segregation

attachment

noun
  • The act or process of (physically or figuratively) attaching. 

  • The means by which something is physically attached. 

  • Taking a person's property to satisfy a court-ordered debt. 

  • A device attached to a piece of equipment or a tool. 

  • A strong bonding with or fondness for someone or something. 

  • A file sent along with a message, usually an email. 

  • The act or process by which any (downward) leader connects to any available (upward) streamer in a lightning flash. 

  • A dependence, especially a strong one. 

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 attachment and segregation occurred in a corpus of books? (source: Google Ngram Viewer )