attractor vs focal point

attractor

noun
  • Something which attracts. 

  • A set of points or states to which a dynamical system evolves after a long enough time. That is, points that get close enough to the attractor remain close even if slightly disturbed. 

focal point

noun
  • A feature that attracts particular attention. 

  • A solution that people will tend to use in the absence of communication, because it seems natural, special, or relevant. 

  • The centre of any activity. 

  • A focus; a point at which rays of light or other radiation converge. 

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