disintegration vs dry rot

disintegration

noun
  • The condition of anything which has disintegrated. 

  • The wearing away or falling to pieces of rocks or strata, produced by atmospheric action, frost, ice, etc. 

  • The process of radioactive decay. 

  • The radioactive decay of a single atom. 

  • A process by which anything disintegrates. 

dry rot

noun
  • Any progression of decay, corruption, or obsolescence. 

  • The crumbly, friable decayed portions of wooden members of buildings, especially at or below grade, usually caused by a fungal infection. 

  • A fungal infection which affects plants, in particular potatoes. 

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