olfactory vs sensual

olfactory

adj
  • Concerning the sense of smell. 

noun
  • The sense of smell. 

sensual

adj
  • Of or pertaining to the physical senses; sensory. 

  • Provoking or exciting a strong response in the senses. 

  • Inducing pleasurable or erotic sensations. 

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