agitator vs blender

agitator

noun
  • An implement for shaking or mixing. 

  • One of a body of men appointed by the army, in Oliver Cromwell's time, to look after their interests. 

  • One who agitates; one who stirs up or excites others, for example political reformers. 

blender

noun
  • A machine with sharp rotating blades in a bowl, for mashing, crushing, or liquefying food ingredients. 

  • A piece of fabric sewn into the front of a theatrical wig to make it blend in with the performer's natural hair. 

  • A subtly patterned fabric printed in different shades of a single color, often used in place of a solid to create visual texture. 

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