ergotism vs subduction

ergotism

noun
  • A logical deduction. 

  • The usage of ergot infested grain to poison animals. 

  • The effect of long-term ergot poisoning, traditionally due to the ingestion of the alkaloids produced by the fungus Claviceps purpurea which infects rye and other cereals, and more recently by the action of a number of ergoline-based drugs, consisting of convulsive and gangrenous symptoms. 

  • The plant disease caused by ergot. 

subduction

noun
  • The act of subducting or taking away. 

  • The process of one tectonic plate moving beneath another and sinking into the mantle at a convergent plate boundary. 

  • The action of being pushed or drawn beneath another object. 

  • Arithmetical subtraction. 

  • A surjection between diffeological spaces such that the target is identified as the pushforward of the source. 

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