outgrowth vs tumefaction

outgrowth

noun
  • Excessive growth. 

  • An appendage of an animal. 

  • A branch or offshoot of a plant. 

  • A byproduct or consequence of an action or event. 

tumefaction

noun
  • The process or result of tumefying, swelling, or rising into a tumour. 

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