adenoid vs nasal polyp

adenoid

noun
  • an abnormally enlarged mass of lymphatic tissue at the back of the pharynx, often obstructing the nasal and ear passages and hindering speaking and breathing in young children. 

  • Such a mass when not abnormally enlarged, covered by ciliated epithelium and located in the roof and posterior wall of the nasopharynx at the back of the throat behind the uvula. 

adj
  • Of or relating to lymphatic glands or lymphoid tissue. 

  • Of or pertaining to the adenoids. 

  • Relating to, affected with, or associated with abnormally enlarged adenoids. 

nasal polyp

noun
  • A growth in the nose commonly connected with allergic rhinitis, but not directly caused by it, arising mainly from the mucous membranes and paranasal sinuses. 

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