disperse vs dose

disperse

verb
  • To disseminate. 

  • To break up and disappear; to dissipate. 

  • To scatter in different directions. 

  • To separate rays of light, etc., according to wavelength; to refract. 

  • To distribute throughout. 

adj
  • Scattered or spread out. 

dose

verb
  • To administer a dose to. 

  • To prescribe a dose. 

  • To transmit a venereal disease. 

noun
  • A venereal infection. 

  • A measured portion of medicine taken at any one time. 

  • The quantity of an agent (not always active) substance or radiation administered or experienced at any one time. 

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