flocking vs focusing

flocking

noun
  • The process of adding small particles to a surface for the sake of texture. 

  • A material textured in this way, such as the artificial snow of a Christmas tree. 

focusing

adj
  • Used for or pertaining to focusing. 

  • Pertaining to the direction of attention, effort, or energy to a particular audience or purpose over time. 

noun
  • The action of the verb to focus. 

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