diffusive vs efferent

diffusive

adj
  • Pertaining to diffusion. 

  • That diffuses something; disseminating. 

  • That is spread or dispersed across a wide area or among a large number of people. 

  • Involving or employing many words; expansive, discursive; (in negative sense) long-winded. 

efferent

adj
  • Carried outward. 

  • Carrying away from. 

noun
  • A duct or stream that carries away. 

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