cancroid vs ulcer

cancroid

noun
  • Any disease that resembles cancer 

  • Squamous cell carcinoma 

adj
  • Of or pertaining to cancer, especially to squamous cell carcinoma 

  • Resembling a crab 

ulcer

noun
  • Peptic ulcer. 

  • Anything that festers and corrupts like an open sore; a vice in character. 

  • An open sore of the skin, eyes or mucous membrane, often caused by an initial abrasion and generally maintained by an inflammation and/or an infection. 

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