disarticulation vs dislocation

disarticulation

noun
  • The act of disarticulating. 

  • Some amputations: where a joint is disarticulated: e.g. knee, hip, elbow or shoulder disarticulation. 

dislocation

noun
  • The act of displacing, or the state of being displaced. 

  • A sentence structure in which a constituent that could otherwise be either an argument or an adjunct of a clause occurs outside of and adjacent to the clause boundaries. 

  • The act of dislocating, or putting out of joint; also, the condition of being thus displaced. 

  • A linear defect in a crystal lattice. Because dislocations can shift within the crystal lattice, they tend to weaken the material, compared to a perfect crystal. 

  • The displacement of parts of rocks or portions of strata from the situation which they originally occupied. 

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