proliferative vs vegetative

proliferative

adj
  • of or pertaining to proliferation, especially of cells 

  • proliferating; tending to proliferate 

noun
  • Such a cell 

vegetative

adj
  • Of or relating to plants; especially to their growth. 

  • Physically inactive. 

  • Of a state of impaired brain function, where a person can respond to some stimuli but is incapable of voluntary acts. 

  • Of or relating to functions such as growth, nutrition and asexual reproduction rather than sexual reproduction. 

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